Datasheet

Section 10A I/O Ports
(H8S/2633, H8S/2632, H8S/2631, H8S/2633R)
Page 400 of 1434 R01UH0166EJ0600 Rev. 6.00
Mar 02, 2011
H8S/2633 Group, H8S/2633 F-ZTAT
TM
,
H8S/2633R F-ZTAT
TM
, H8S/2695
10A.5 Port 7
10A.5.1 Overview
Port 7 is an 8-bit I/O port. Port 7 is a multipurpose port for the 8-bit timer I/O pins (TMRI01,
TMCI01, TMRI23, TMCI23, TMO0, TMO1, TMO2, and TMO3), DMAC I/O pins (DREQ0,
TEND0, DREQ1, and TEND1), bus control output pins (CS4 to CS7), SCI I/O pins (SCK3,
RxD3, and TxD3) and manual reset input pin (MRES). The pin functions for P77 to P74 are the
same in all operating modes. P73 to P70 pin functions are switched according to operating mode.
Figure 10A.4 shows the configuration for port 7 pins.
P77 /
P76 /
P75 /
P74 /
P73 /
P72 /
P71 /
P70 /
P77
P76
P75
P74
P73
P72
P71
P70
(I/O) /
(I/O) /
(I/O) /
(I/O) /
(input) / TMO1 (output) / TEND1 (output) / CS7 (output)
(input) / TMO0 (output) / TEND0 (output) / CS6 (output)
(input) / TMRI23 (input) / TMCI23 (input) / DREQ1 (input) / CS5 (output)
(input) / TMRI01 (input) / TMCI01 (input) / DREQ0 (input) / CS4 (output)
TxD3
RxD3
TMO3 / SCK3
TMO2 / MRES
TMO1 / TEND1 / CS7
TMO0 / TEND0 / CS6
TMRI23 / TMCI23 / DREQ1 / CS5
TMRI01 / TMCI01 / DREQ0 / CS4
Port 7 pins Pin functions in modes 4 to 6
Pin functions in mode 7
Port 7
TxD3 (output)
RxD3 (input)
TMO3 (output) / SCK3 (I/O)
TMO2 (output) / MRES (input)
P77
P76
P75
P74
P73
P72
P71
P70
(I/O) /
(I/O) /
(I/O) /
(I/O) /
(I/O) /
(I/O) /
(I/O) /
(I/O) /
TxD3 (output)
RxD3 (input)
TMO3 (output) / SCK3 (I/O)
TMO2 (output) / MRES (input)
TMO1 (output) / TEND1 (output)
TMO0 (output) / TEND0 (output)
TMRI23 (input) / TMCI23 (input) / DREQ1 (input)
TMRI01 (input) / TMCI01 (input) / DREQ0 (input)
Figure 10A.4 Port 7 Pin Functions