r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 666

• Manufacturer Part Number: r4f2426
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 10 I/O Ports
• PF3/LWR/SSO0-C
Notes: 1. SSO0-C input when SSO0S1 and SSO0S0 = B'10 in PFCR5, and SSUMS, BIDE, MSS,
Legend:
: Pin is not used by the SSU (can be used as I/O port)
Rev. 1.00 Sep. 19, 2008 Page 638 of 1270
REJ09B0466-0100
Operating
mode
LWROE
SSU
settings
PF3DDR
Pin function
SSUMS
BIDE
MSS
TE
RE
Pin state
The pin function is switched as shown below according to the combination of the operating
mode, bit EXPE, bits MSS and BIDE in SSCRH, bit SSUMS in SSCRL, and bits TE and RE
in SSER of the SSU, bit LWROE in PFCR2, bits SSOS1 and SSOS0 in PFCR5, and bit
PF3DDR.
2. SSO0-C output when SSO0S1 and SSO0S0 = B'10 in PFCR5, and SSUMS, BIDE,
Input
0
1
TE, and RE = B'000×1 or B'01×01.
MSS, TE, and RE = B'0011×, B'01×10, or B'10×1×.
output
LWR

0
0


1
1
Input
1
Can be used as
input
0
0
PF3
0

1, 2, 4, 7 (EXPE = 1)
0
1
I/O port
Output Output Input Output Input Output 
0
output
1
PF3
1
1
1
SSO0-C
0
input*
Input
state
0
1
0
SSO pin settings
0
1
1
0
SSO0-C
output*
Output
state
0
1

0
1
1
2
1
0
Can be used as
input
PF3
0
I/O port
0
1
Output Output 
output
0
PF3
0
7 (EXPE = 0)
1
1
1
0
SSO0-C
input*
1
0
Input
state
0
0
1
Output Output
1
0
SSO0-C
output*
1
Output
state
1

1
2