HD643303x Hitachi, HD643303x Datasheet - Page 26

• Manufacturer Part Number: HD643303x
• Description: Hitachi Microcomputer
• Manufacturer: Hitachi

Table 1-3 Pin Functions (cont)
Type
Interrupts
Address bus
Data bus
Bus control
16-bit
integrated
time unit
(ITU)
Programmable TP
timing pattern
controller (TPC)
Symbol
NMI
IRQ
IRQ
A
A
D
AS
RD
WR
WAIT
TCLKD to
TCLKA
TIOCA
TIOCA
TIOCB
TIOCB
TOCXA
TOCXB
TP
19
7
7
15
0
to A
to D
4
0
to A
to
to
4
0
4
0
0
0
4
4
8
to
to
,
Pin No.
49
11,
72 to 69
42 to 31,
29 to 22
20 to 13
54
55
56
43
76 to 73
3, 1, 79,
77, 75
4, 2, 80,
78, 76
5
6
8 to 1,
80 to 73
I/O
Input
Input
Output Address bus: Outputs address signals
Input/
output
Output Address strobe: Goes low to indicate valid
Output Read: Goes low to indicate reading from the
Output High write: Goes low to indicate writing to the
Input
Input
Input/
output
Input/
output
Output Output compare XA4: PWM output
Output Output compare XB4: PWM output
Output TPC output 15 to 0: Pulse output
11
Name and Function
Nonmaskable interrupt: Requests a
nonmaskable interrupt
Interrupt request 4 to 0: Maskable interrupt
request pins
Data bus: Bidirectional data bus
address output on the address bus
external address space
external address space; indicates valid data on
the data bus.
Wait: Requests insertion of wait states in bus
cycles during access to the external address
space
Clock input A to D: External clock inputs
Input capture/output compare A4 to A0:
GRA4 to GRA0 output compare or input
capture, or PWM output
Input capture/output compare B4 to B0:
GRB4 to GRB0 output compare or input
capture, or PWM output