Philips Semiconductors
Low voltage 16-bit microcontroller
Preliminary specification
P90CL301BFH (C100)
SYMBOL(1)
PIN
DESCRIPTION
RESET
HALT
VDD1
D15/P7 to D8/P0
DTACK
R/W / TROM
LDS [DS]
67 reset (bidirectional)
68 halt (bidirectional)
69 supply voltage; first pin
70 to 77 upper 8-bits of data bus or 8-bit Port 7 to Port 0; the selected function after reset
is defined by pin BSIZE
78 data transfer acknowledge
79 read/write bus control or Test-ROM forced input
80 lower data strobe [word data strobe]
Note
1. The following notation is used to describe the multiple pin definitions:
a) Function1/Function2/Function3: multiplexed functions on the same pin. During and after reset the Function1 is
selected.
b) Function1 (Function2): function done in parallel.
c) Function1 [Function2]: equivalent function.
1996 Dec 11
7