HD6475328-CP10 HITACHI [Hitachi Semiconductor], HD6475328-CP10 Datasheet - Page 157

• Manufacturer Part Number: HD6475328-CP10
• Description: original Hitachi CMOS microcomputer unit (MCU)
• Manufacturer: HITACHI [Hitachi Semiconductor]

Table 9-1 Input/Output Port Summary
Port
Port 1 8-Bit input/output P1
Port 2 5-Bit input/output P2
Port 3 8-Bit input/output P3
Port 4 8-Bit input/output P4
Port 5 8-Bit input/output P5
Port 6 4-Bit input/output P6
Description
port
port
port
Can drive a LED
port
Built-in input
pull-up (MOS)
port
Built-in input
pull-up (MOS)
Pins
P1
P1
P1
P1
P1
P1
P1
P2
P2
P2
P2
D
A
A
A
7
15
19
7
7
6
5
4
3
2
1
0
4
3
2
1
0
7
7
7
3
– A
– D
– A
– A
/ TMO
/ IRQ
/ IRQ
/ WAIT
/ BREQ and BACK when necessary control-
/ BACK register bits are set to “1.”
/ E
/ ø
/ WR
/ RD
/ DS
/ R/W
/ AS
- P3
– P4
– P5
–P6
0
0
8
16
0
0
0
0
1
0
/
/
/ Low address bits (A
/ High
Mode 1 Mode 2 Mode 3 Mode 4
These input/output pins double as and
inputs and as IRQ
output pin (TMO) for the 8-bit timer.
These pins function as WAIT, BREQ,
These pins function as input pins or as
clock (E, ø) output pins, depending on
the data direction register setting.
Bus control signal outputs
(WR, RD, DS, R/W, AS)
Data bus (D
address address address address
bus
(A
Input/output port Page
A
8
15
)
–
140
High
bus if
DDR is (A
set to “1” A
Expanded Modes
7
– D
0
0
)
High
bus
address address
bus
(A
A
and IRQ
7
8
16
15
19
– A
)
)
–
–
0
)
High
bus if
DDR is
set to “1”
Page
bus if DDR
is set to “1,”
input port if
DDR is set
to “0”
1
input and
Single-Chip Mode
(Mode 7)
Input/output
port
Input/output
port
Input/output
port
Input/output
port
Input/output
port
Input/output
port