Datasheet

Section 1 Overview
Rev. 3.00 Mar 21, 2006 page 19 of 788
REJ09B0300-0300
Pin No.
Type Symbol
FP-100B,
TFP-100B
TFP-144 I/O Name and Function
A23 to
A16
10, 11, 20,
21, 30, 31,
47, 48
33, 34,
35, 37,
38, 39,
40, 41
Output Address output pins when 16-Mbyte
space is used.
Address
bus
A15 to A0 60 to 67,
72 to 79
96 to
110, 112
Output Address output pins
D15 to D8 89 to 82 128 to
121
Input/
output
Bidirectional data bus for upper byte of
16-bit data.
Data bus
D7 to D0 57, 58, 68,
69, 80, 81,
90, 91
113 to
120
Input/
output
Bidirectional data bus for lower byte of
16-bit data.
WAIT 16 17 Input Requests insertion of a wait state in the
bus cycle when accessing external 3-
state address space.
RD 22 21 Output When this pin is low, it indicates that the
external address space is being read.
HWR 19 20 Output When this pin is low, it indicates that the
external address space is being written
to. The upper half of the data bus is
valid.
LWR 25 24 Output When this pin is low, it indicates that the
external address space is being written
to. The lower half of the data bus is
valid.
Bus control
AS/IOS 18 19 Output When this pin is low, it indicates that
address output on the address bus is
valid.
Interrupt
signals
NMI 7 11 Input Input pin for a nonmaskable interrupt
request.
IRQ0 to
IRQ7
23 to 25,
97 to 99,
34, 35
22 to 24,
133 to
135, 84,
85
Input These pins request a maskable
interrupt.