H8S2456 Datasheet, PDF (614/1376 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer H8S Family / H8S/2400 Series

Section 10 I/O Ports
• Mode 7 (EXPE = 0)
A23E

CS7E*⁴
0
SSU settings
Can be used as
I/O port
Input state
Output state
PA7DDR
0
1
0

Pin function
PA7 input PA7 output
SSO0-B input*²
SSO0-B output*³
IRQ7-A interrupt input*¹
Notes: 1. IRQ7-A input when the ITS7 bit in ITSR is 0.
2. SSO0-B input when SSO0S1 and SSO0S0 = B'01 in PFCR5, and SSUMS, BIDE, MSS,
TE, and RE = B'000×1 or B'01×01.
3. SSO0-B output when SSO0S1 and SSO0S0 = B'01 in PFCR5, and SSUMS, BIDE,
MSS, TE, and RE = B'001××, B'0101×, or B'10×1×.
4. Supported only by the H8S/2454 Group and not supported by the H8S/2456 and
H8S/2456R Groups.
SSO pin settings
SSUMS
0
0
1
BIDE
0
1
0
MSS
0
1
0
1
0
1
TE
0
1
0
1
0
1
0
10
1
0
1
RE
1
0
11
0
1
1
0
1
0 10
110
1
Pin state Input  Input  Output Output Input Output Input Output  Output Output  Output Output
Legend:
: Pin is not used by the SSU (can be used as I/O port)
Rev. 1.00 Sep. 19, 2008 Page 584 of 1342
REJ09B0467-0100