h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 271

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

• P56/D6/(IRQ6)/DACK3
Note:
• P55/D5/TEND3
• P54/D4/DREQ3
Note:
EXPE
Bus mode
AMS
P56DDR
Pin function
EXPE
Bus mode
TENDE
P55DDR
Pin function
EXPE
Bus mode
P54DDR
Pin function
The pin function is switched as shown below according to the combination of the P56DDR bit,
the AMS bit in DMMDR_3, the EXPE bit in MDCR, and the ISS6 bit in ISSR.
The pin function is switched as shown below according to the combination of the P55DDR bit,
the TENDE bit in DMMDR_3, and the EXPE bit in MDCR.
The pin function is switched as shown below according to the combination of the P54DDR bit,
the DREQS bit in DMMDR_3, and the EXPE bit in MDCR.
*
*
When ISS6 = 1, this pin functions as IRQ6 interrupt input.
When DREQS = 1, this pin functions as DREQ3 input.
P56 input
P55 input
P54 input
0
0
0


0
0
0
0
P56 output
P55 output

0
P54 output
1
1
1
P55 input
P56 input
IRQ6 interrupt input*
0
0
P54 input
DREQ3 input*
All areas are 8-bit space
All areas are 8-bit space
All areas are 8-bit space
0
0
0
P55 output
P56 output
1
1
Rev. 2.00, 03/04, page 239 of 534
P54 output
1
1
1
1
DACK3
TEND3
output
output


1
1
At least one area
is 16-bit space
area is 16-bit
area is 16-bit
At least one
At least one
D4 I/O
D6 I/O
D5 I/O
space
space




