HD6417750RF240DV Datasheet, PDF (857/1132 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family / SH7750 Series

SH7750, SH7750S, SH7750R Group
Figure 18.2 shows a block diagram of the 4-bit general-purpose I/O port.
Section 18 I/O Ports
PBnPUP
PORTEN
Pull-up resistor
Internal bus
Dn output data
0
DQ
1
PDTRW C
BCK
0
DnDIR
1
PBnIO
0
Data input strobe
1
C
QD
Dn input data
PORTEN
PBnPuP
DnDIR
PBnIO
0: Port not available
0: Pull-up
0: Input
0: Input
1: Port available
1: Pull-up off
1: Output
1: Output
Figure 18.2 4-Bit Port
Port 19 (input/
output)/D51
to
Port 16 (input/
output)/D48
BCK
R01UH0456EJ0702 Rev. 7.02
Sep 24, 2013
Page 805 of 1076