HD64F2149 Datasheet, PDF (1016/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

C.9 Port 9 Block Diagrams
Hardware standby
P90
EXPE
Mode 2, 3
FGA20E
HI12E
CS2E
EXPE
ABW
Reset
R
QD
P90DDR
C
WP9D
Reset
R
QD
P90DR
C
WP9
Bus controller
LWR output
RP9
HIF : XBS
ECS2 input
WP9D : Write to P9DDR
WP9 : Write to port 9
RP9 : Read port 9
Figure C.32 Port 9 Block Diagram (Pin P90)
A/D converter
External trigger
input
IRQ2 input
IRQ2 enable
982