ADuCM322i Data Sheet
Rev. 0 | Page 18 of 23
Pin No. Mnemonic Type
1
Description
G2 P3.1/PRTADDR1/PLAI[13] I/O Digital Input/Output Port 3.1 (P3.1).
MDIO Port Address Bit 1 (PRTADDR1). See the Digital Inputs parameter in
Table 1 for details.
Input to PLA Element 13 (PLAI[13]).
G3 P3.0/PRTADDR0/PLAI[12] I/O Digital Input/Output Port 3.0 (P3.0).
MDIO Port Address Bit 0 (PRTADDR0). See the Digital Inputs parameter in
Table 1 for details.
Input to PLA Element 12 (PLAI[12]).
G9 AIN15/P4.7 AI/I/O Analog Input 15 (AIN15).
Digital Input/Output Port 4.7 (P4.7).
Digital Input/Output Port 4.5 (P4.5).
G11 AVDD4 S ADC Supply (3.3 V).
H1 P3.5/MCK/PLAO[27] I/O Digital Input/Output Port 3.5 (P3.5).
MDIO Clock (MCK). See the Digital Inputs parameter in Table 1 for more details.
Output of PLA Element 27 (PLAO[27]).
H2 XTALO O
Output from the Crystal Oscillator Inverter. When not using an external
crystal, leave XTALO unconnected.
H3 MDIO I/O MDIO Data.
H9 AIN14/P4.6 AI/I/O Analog Input 14 (AIN14).
Digital Input/Output Port 4.6 (P4.6).
Digital Input/Output Port 4.4 (P4.4).
H11 AGND4 S Ground for AVDD4, AVDD_REG0, and AVDD_REG1.
J1 IOVDD3 S 3.3 V GPIO Supply.
J2 XTALI I
Input to the Crystal Oscillator Inverter and Input to the Internal Clock
Generator Circuits. When not using an external crystal, connect XTALI to
DGND.
J3 VDAC7/P5.2 AO/I/O Voltage DAC7 Output (VDAC7).
Digital Input/Output Port 5.2 (P5.2).
J4 VDAC4 AO Voltage DAC4 Output (VDAC4).
J5 AGND1 S Analog Ground for VDD1.
J6 AIN0 AI Analog Input 0.
J7 AIN1 AI Analog Input 1.
J8 AIN2 AI Analog Input 2.
J9 AIN7 AI Analog Input 7.
J10 AIN10 AI Analog Input 10.
J11 AIN11/BUF_VREF2V5 AI/AO Analog Input 11 (AIN11).
Buffered 2.5 V Bias (BUF_VREF2V5). The maximum load is 1.2 mA. Connect
BUF_VREF2V5 to AGNDx via a 100 nF capacitor.
K1 IOGND3 S Ground for IOVDD3.
K2 DVDD_2V5 AO
2.5 V Digital Supply. A 470 nF capacitor to IOGND3 must be connected to this
ball to stabilize the internal 2.5 V regulator that supplies the analog digital control.
K3 VDAC6/P5.1 AO/I/O Voltage DAC6 Output (VDAC6).
Digital Input/Output Port 5.1 (P5.1).
K4 VDAC3/P5.0 AO/I/O Voltage DAC3 Output (VDAC3).
Digital Input/Output Port 5.0 (P5.0).
K5 VDAC1 AO Voltage DAC1 Output.
K6 VDD1 S 3.3 V Supply for Digital Die.
K8 AIN3 AI Analog Input 3.
K9 AIN6 AI Analog Input 6. AIN6 is also the positive input for the comparator.
K10 AIN9/P4.3 AI/I/O Analog Input 9 (AIN9).
Digital Input/Output Port 4.3 (P4.3).