h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 1050

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Appendix C I/O Port Block Diagrams
Rev. 4.00 Jun 06, 2006 page 996 of 1004
REJ09B0301-0400
P97
Legend:
WP9D: Write to P9DDR
WP9:
RP9:
Notes: 1. Output enable signal
*
*
1
2
2. Open drain control signal
Write to port 9
Read port 9
Figure C.33 Port 9 Block Diagram (Pin P97)
Hardware
standby
EXPE
RP9
Q
P97DDR
Q
P97DR
WP9D
Reset
Reset
WP9
R
C
R
C
D
D
Bus controller
IIC0
Input enable
WAIT input
SDA0 output
Transmit enable
SDA0 input