h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 272

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

• P53/D3/(IRQ3)/DRAK2
Note:
• P52/D2/(IRQ2)/DACK2
Note:
Rev. 2.00, 03/04, page 240 of 534
EXPE
Bus mode
DRAKE
P53DDR
Pin function
EXPE
Bus mode
AMS
P52DDR
Pin function
The pin function is switched as shown below according to the combination of the P53DDR bit,
the DRAKE bit in DMMDR_2, the EXPE bit in MDCR, and the ISS3 bit in ISSR.
The pin function is switched as shown below according to the combination of the P52DDR bit,
the AMS bit in DMMDR_2, the EXPE bit in MDCR, and the ISS2 bit in ISSR.
*
*
When ISS3 = 1, this pin functions as IRQ3 interrupt input.
When ISS2 = 1, this pin functions as IRQ2 interrupt input.
P53 input
P52 input
0
0


0
0
0
0
P53 output
P52 output
1
1
P53 input
P52 input
IRQ3 interrupt input*
IRQ2 interrupt input*
0
0
All areas are 8-bit space
All areas are 8-bit space
0
0
P53 output
P52 output
1
1
1
1
DRAK2
DACK2
output
output


1
1
area is 16-bit
area is 16-bit
At least one
At least one
D3 I/O
D2 I/O
space
space



