hd66100 Renesas Electronics Corporation., hd66100 Datasheet - Page 146

• Manufacturer Part Number: hd66100
• Description: H8/3867 Series
• Manufacturer: Renesas Electronics Corporation.

8.1
The H8/3864 Series is provided with six 8-bit I/O ports, one 4-bit I/O port, one 3-bit I/O port, one
8-bit input-only port, and one 1-bit input-only port. Table 8.1 indicates the functions of each port.
Each port has of a port control register (PCR) that controls input and output, and a port data
register (PDR) for storing output data. Input or output can be assigned to individual bits.
See 2.9.2, Notes on Bit Manipulation, for information on executing bit-manipulation instructions
to write data in PCR or PDR.
Ports 5, 6, 7, 8, and A are also used as liquid crystal display segment and common pins, selectable
in 8-bit units.
Block diagrams of each port are given in Appendix C, I/O Port Block Diagrams.
Table 8.1
Port
Port 1
Port 3
Description
Overview
8-bit I/O port
MOS input pull-up
option
8-bit I/O port
MOS input pull-up
option
Large-current port
Port Functions
Section 8 I/O Ports
Pins
P1
IRQ
TMIF, TMIC
P1
P1
P1
TMOFH, TMOFL
P1
P3
P3
P3
P3
P3
P3
P3
P3
7
4
3
2
0
7
6
5
4
3
2
1
0
/IRQ
/TMIG
, P1
/TMOW
/AEVL
/AEVH
/TXD
/RXD
/SCK
/RESO
/UD
/PWM
3
to P1
to IRQ
1
4
/
31
31
31
/ADTRG
5
/
1
/
Other Functions
External interrupts 3 to 1
Timer event interrupts
TMIF, TMIC
External interrupt 4 and A/D
converter external trigger
Timer G input capture input
Timer F output compare
output
Timer A clock output
SCI3-1 data output (TXD
data input (RXD
input/output (SCK
asynchronous counter event
inputs AEVL, AEVH
Reset output, timer C count-
up/down select input, and 14-
bit PWM output
31
31
), clock
), and
31
),
Function
Switching
Registers
PMR1
TCRF,
TMC
PMR1, AMR
PMR1
PMR1
PMR1
PMR3
SCR31
SMR31
PMR3
131