r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 667

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

• PF2/LCAS/DQML/IRQ15-A/SSI0-C (H8S/2426 Group and H8S/2426R Group)
• Modes 1, 2, 4, and 7 (EXPE = 1)
• Mode 7 (EXPE = 0)
Notes: 1. IRQ15 input when the ITS15 bit in ITSR is 0.
Areas 2 to 5
SSU settings
PF2DDR
Pin function
Areas 2 to 5
SSU settings
PF2DDR
Pin function
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, bits RMTS2 to RMTS0 in DRAMCR of the bus controller, bits SSI0S1
and SSI0S0 in PFCR5, bits ABW5 to ABW2 in ABWCR, and bit PF2DDR.
2. SSI0-C input when SSI0S1 and SSI0S0 = B'10 in PFCR5, and SSUMS, BIDE, MSS,
3. SSI0-C output when SSI0S1 and SSI0S0 = B'10 in PFCR5, and SSUMS, BIDE, MSS,
TE, and RE = B'001×1 or B'10××1.
TE, and RE = B'0001×.
synchronous DRAM
space area is 16-bit
PF2 input
DQML*
LCAS output
Any DRAM/
bus space
Can be used as I/O port
0


3
output
PF2 output
Can be used as I/O port
PF2 input
8-bit bus space, or areas 2 to 5 are all normal space
1
0
IRQ15-A interrupt input*
All DRAM/synchronous DRAM space areas are
IRQ15-A interrupt input*
PF2 output SSI0-C input*

1
SSI0-C input*
Rev. 1.00 Sep. 19, 2008 Page 639 of 1270
Input state
0
Input state
1
1
0
2
Section 10 I/O Ports
2
SSI0-C output*
REJ09B0466-0100
SSI0-C output*
Output state
Output state


3
3