HD6417750RF240DV Datasheet, PDF (856/1132 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family / SH7750 Series

Section 18 I/O Ports
SH7750, SH7750S, SH7750R Group
18.1.2 Block Diagrams
Figure 18.1 shows a block diagram of the 16-bit general-purpose I/O port.
PBnPUP
PORTEN
Pull-up resistor
Interrupt
controller
Internal bus
0
Dn output data
DQ
1
PDTRW C
BCK
0
DnDIR
1
PBnIO
PTIRENn
0
Data input strobe
1
Q
C
D
Dn input data
PORTEN
PBnPuP
DnDIR
PBnIO
PTIRENn
0: Port not available
0: Pull-up
0: Input
0: Input
0: Interrupt input disabled
1: Port available
1: Pull-up off
1: Output
1: Output
1: Interrupt input enabled
Figure 18.1 16-Bit Port
Port 15 (input/
output)/D47
to
Port 0 (input/
output)/D32
BCK
Page 804 of 1076
R01UH0456EJ0702 Rev. 7.02
Sep 24, 2013