P89LPC9351FDH,518 Datasheet P89LPC9351FDH,518 | P7-P9

Preliminary data sheet Rev. 01 — 19 November 2008 7 of 74

NXP Semiconductors

P89LPC9351

8-bit microcontroller with 8-bit ADC

6.2 Pin description

Table 3. Pin description

Symbol Pin Type Description

PLCC28,

TSSOP28

P0.0 to P0.7 I/O Port 0: Port 0 is an 8-bit I/O port with a user-conﬁgurable output type. During reset

Port 0 latches are conﬁgured in the input only mode with the internal pull-up

disabled. The operation of Port 0 pins as inputs and outputs depends upon the

port conﬁguration selected. Each port pin is conﬁgured independently. Refer to

Section 7.16.1 “Port conﬁgurations” and Table 10 “Static characteristics” for

details.

The Keypad Interrupt feature operates with Port 0 pins.

All pins have Schmitt trigger inputs.

Port 0 also provides various special functions as described below:

P0.0/CMP2/

KBI0/AD01

3 I/O P0.0 — Port 0 bit 0.

O CMP2 — Comparator 2 output

I KBI0 — Keyboard input 0.

I AD01 — ADC0 channel 1 analog input.

P0.1/CIN2B/

KBI1/AD10

26 I/O P0.1 — Port 0 bit 1.

I CIN2B — Comparator 2 positive input B.

I KBI1 — Keyboard input 1.

I AD10 — ADC1 channel 0 analog input.

P0.2/CIN2A/

KBI2/AD11

25 I/O P0.2 — Port 0 bit 2.

I CIN2A — Comparator 2 positive input A.

I KBI2 — Keyboard input 2.

I AD11 — ADC1 channel 1 analog input.

P0.3/CIN1B/

KBI3/AD12

24 I/O P0.3 — Port 0 bit 3. High current source.

I CIN1B — Comparator 1 positive input B.

I KBI3 — Keyboard input 3.

I AD12 — ADC1 channel 2 analog input.

P0.4/CIN1A/

KBI4/DAC1/AD13

23 I/O P0.4 — Port 0 bit 4. High current source.

I CIN1A — Comparator 1 positive input A.

I KBI4 — Keyboard input 4.

O DAC1 — Digital-to-analog converter output 1.

I AD13 — ADC1 channel 3 analog input.

P0.5/CMPREF/

KBI5

22 I/O P0.5 — Port 0 bit 5. High current source.

I CMPREF — Comparator reference (negative) input.

I KBI5 — Keyboard input 5.

Preliminary data sheet Rev. 01 — 19 November 2008 8 of 74

NXP Semiconductors

P89LPC9351

8-bit microcontroller with 8-bit ADC

P0.6/CMP1/KBI6 20 I/O P0.6 — Port 0 bit 6. High current source.

O CMP1 — Comparator 1 output.

I KBI6 — Keyboard input 6.

P0.7/T1/KBI7 19 I/O P0.7 — Port 0 bit 7. High current source.

I/O T1 — Timer/counter 1 external count input or overﬂow output.

I KBI7 — Keyboard input 7.

P1.0 to P1.7 I/O, I

[1]

Port 1: Port 1 is an 8-bit I/O port with a user-conﬁgurable output type, except for

three pins as noted below. During reset Port 1 latches are conﬁgured in the input

only mode with the internal pull-up disabled. The operation of the conﬁgurable

Port 1 pins as inputs and outputs depends upon the port conﬁguration selected.

Each of the conﬁgurable port pins are programmed independently. Refer to

Section 7.16.1 “Port conﬁgurations” and Table 10 “Static characteristics” for

details. P1.2 to P1.3 are open drain when used as outputs. P1.5 is input only.

All pins have Schmitt trigger inputs.

Port 1 also provides various special functions as described below:

P1.0/TXD 18 I/O P1.0 — Port 1 bit 0.

O TXD — Transmitter output for serial port.

P1.1/RXD 17 I/O P1.1 — Port 1 bit 1.

I RXD — Receiver input for serial port.

P1.2/T0/SCL 12 I/O P1.2 — Port 1 bit 2 (open-drain when used as output).

I/O T0 — Timer/counter 0 external count input or overﬂow output (open-drain when

used as output).

I/O SCL — I

C-bus serial clock input/output.

P1.3/

INT0/SDA 11 I/O P1.3 — Port 1 bit 3 (open-drain when used as output).

INT0 — External interrupt 0 input.

I/O SDA — I

C-bus serial data input/output.

P1.4/

INT1 10 I/O P1.4 — Port 1 bit 4. High current source.

INT1 — External interrupt 1 input.

P1.5/

RST 6 I P1.5 — Port 1 bit 5 (input only).

RST — External Reset input during power-on or if selected via UCFG1. When

functioning as a reset input, a LOW on this pin resets the microcontroller, causing

I/O ports and peripherals to take on their default states, and the processor begins

execution at address 0. Also used during a power-on sequence to force ISP mode.

P1.6/OCB 5 I/O P1.6 — Port 1 bit 6. High current source.

O OCB — Output Compare B

P1.7/OCC/AD00 4 I/O P1.7 — Port 1 bit 7. High current source.

O OCC — Output Compare C.

I AD00 — ADC0 channel 0 analog input.

Table 3. Pin description

…continued

Symbol Pin Type Description

PLCC28,

TSSOP28

Preliminary data sheet Rev. 01 — 19 November 2008 9 of 74

NXP Semiconductors

P89LPC9351

8-bit microcontroller with 8-bit ADC

P2.0 to P2.7 I/O Port 2: Port 2 is an 8-bit I/O port with a user-conﬁgurable output type. During reset

Port 2 latches are conﬁgured in the input only mode with the internal pull-up

disabled. The operation of Port 2 pins as inputs and outputs depends upon the

port conﬁguration selected. Each port pin is conﬁgured independently. Refer to

Section 7.16.1 “Port conﬁgurations” and Table 10 “Static characteristics” for

details.

All pins have Schmitt trigger inputs.

Port 2 also provides various special functions as described below:

P2.0/ICB/DAC0

/AD03

1 I/O P2.0 — Port 2 bit 0.

I ICB — Input Capture B.

O DAC0 — Digital-to-analog converter output.

I AD03 — ADC0 channel 3 analog input.

P2.1/OCD/AD02 2 I/O P2.1 — Port 2 bit 1.

O OCD — Output Compare D.

I AD02 — ADC0 channel 2 analog input.

P2.2/MOSI 13 I/O P2.2 — Port 2 bit 2.

I/O MOSI — SPI master out slave in. When conﬁgured as master, this pin is output;

when conﬁgured as slave, this pin is input.

P2.3/MISO 14 I/O P2.3 — Port 2 bit 3.

I/O MISO — When conﬁgured as master, this pin is input, when conﬁgured as slave,

this pin is output.

P2.4/

SS 15 I/O P2.4 — Port 2 bit 4.

I/O

SS — SPI Slave select.

P2.5/SPICLK 16 I/O P2.5 — Port 2 bit 5.

I/O SPICLK — SPI clock. When conﬁgured as master, this pin is output; when

conﬁgured as slave, this pin is input.

P2.6/OCA 27 I/O P2.6 — Port 2 bit 6.

O OCA — Output Compare A.

P2.7/ICA 28 I/O P2.7 — Port 2 bit 7.

I ICA — Input Capture A.

P3.0 to P3.1 I/O Port 3: Port 3 is a 2-bit I/O port with a user-conﬁgurable output type. During reset

Port 3 latches are conﬁgured in the input only mode with the internal pull-up

disabled. The operation of Port 3 pins as inputs and outputs depends upon the

port conﬁguration selected. Each port pin is conﬁgured independently. Refer to

Section 7.16.1 “Port conﬁgurations” and Table 10 “Static characteristics” for

details.

All pins have Schmitt trigger inputs.

Port 3 also provides various special functions as described below:

Table 3. Pin description

…continued

Symbol Pin Type Description

PLCC28,

TSSOP28

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P24 P25-P27 P28-P30 P31-P33 P34-P36 P37-P39 P40-P42 P43-P45 P46-P48 P49-P51 P52-P54 P55-P57 P58-P60 P61-P63 P64-P66 P67-P69 P70-P72 P73-P74

P89LPC9351FDH,518

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Microcontrollers - MCU 8-bit Microcontrollers - MCU Enhanced LPC935

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