h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 273

• Manufacturer Part Number: h8s-2172
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family H8s-2100 Series
• Manufacturer: Renesas Electronics Corporation.

• P51/D1/TEND2
• P50/D0/DREQ2
Note:
EXPE
Bus mode
TENDE
P51DDR
Pin function
EXPE
Bus mode
P50DDR
Pin function
The pin function is switched as shown below according to the combination of the P51DDR bit,
the TENDE bit in DMMDR_2, and the EXPE bit in MDCR.
The pin function is switched as shown below according to the combination of the P50DDR bit,
the DREQS bit in DMMDR_2, and the EXPE bit in MDCR.
*
When DREQS = 1, this pin functions as DREQ2 input.
P51 input
P50 input
0
0


0
0
0
P51 output
P50 output
1
1
P51 input
P50 input
0
All areas are 8-bit space
DREQ2 input*
0
All areas are 8-bit space
0
P51 output
1
P50 output
Rev. 2.00, 03/04, page 241 of 534
1
1
1
TEND2
output

1
At least one area
is 16-bit space
area is 16-bit
At least one
D0 I/O

D1 I/O
space

