Philips Semiconductors Product specification
PCK2001M
14.318–150 MHz I
2
C 1:10 clock buffer
2000 May 17
10
SERIAL CONFIGURATION MAP
The serial bits will be read by the clock buffer in the following order:
Byte 0 – Bits 7, 6, 5, 4, 3, 2, 1, 0
Byte 1 – Bits 7, 6, 5, 4, 3, 2, 1, 0
Byte 2 – Bits 7, 6, 5, 4, 3, 2, 1, 0
All unused register bits (Reserved and N/A) should be desined as “Don’t Care”. It is expected that the controller will force all of these bits to a
“0” level.
All register bits labeled “Initialize to 0” must be written to zero during intialization. Failure to do so may result in a higher than normal operating
current. The controller will read back the last written value.
Byte 0: Output active/inactive register
1 = enable; 0 = disable
BIT
PIN# NAME DESCRIPTION
7 — BUF_OUT7 Initialize to 0
6 — BUF_OUT6 Initialize to 0
5 — BUF_OUT5 Initialize to 0
4 — BUF_OUT4 Initialize to 0
3 7 BUF_OUT3 Active/Inactive
2 6 BUF_OUT2 Active/Inactive
1 3 BUF_OUT1 Active/Inactive
0 2 BUF_OUT0 Active/Inactive
NOTE:
1. Inactive means outputs are held LOW and are disabled from switching. These outputs are designed to be configured at power-on and are
not expected to be configured during the normal modes of operation.
Byte 1: Output active/inactive register
1 = enable; 0 = disable
BIT
PIN# NAME DESCRIPTION
7 27 BUF_OUT15 Active/Inactive
6 26 BUF_OUT14 Active/Inactive
5 23 BUF_OUT13 Active/Inactive
4 22 BUF_OUT12 Active/Inactive
3 — BUF_OUT11 Initialize to 0
2 — BUF_OUT10 Initialize to 0
1 — BUF_OUT9 Initialize to 0
0 — BUF_OUT8 Initialize to 0
NOTE:
1. Inactive means outputs are held LOW and are disabled from switching. These outputs are designed to be configured at power-on and are
not expected to be configured during the normal modes of operation.
Byte 2: Optional register for possible future requirments
BIT PIN# NAME DESCRIPTION
7 18 BUF_OUT17 Active/Inactive
6 11 BUF_OUT16 Active/Inactive
5 — (reserved) (reserved)
4 — (reserved) (reserved)
3 — (reserved) (reserved)
2 — (reserved) (reserved)
1 — (reserved) (reserved)
0 — (reserved) (reserved)
NOTE:
1. Inactive means outputs are held LOW and are disabled from switching. These outputs are designed to be configured at power-on and are
not expected to be configured during the normal modes of operation.
