HD64F2168 Datasheet, PDF (265/874 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

• P92/CPCS1
The pin function is switched as shown below according to the combination of the operating
mode, the CPCSE bit in BCR2 of BSC, and the P92DDR bit.
Operating
Mode
CPCSE
P92DDR
Pin function
Extended Mode
Single-Chip Mode
0
1

0
1

0
1
P92 input pin P92 output pin CPCS1 output pin P92 input pin P92 output pin
• P91/AH
The pin function is switched as shown below according to the combination of the operating
mode, the ADMXE bit of SYSCR2, and the P91DDR bit.
Operating
Mode
ADMXE
P91DDR
Pin function
Extended Mode
Single-Chip Mode
0
0
1
P91 input pin P91 output pin
1

AH output pin

0
1
P91 input pin P91 output pin
• P90/LWR
The pin function is switched as shown below according to the combination of the operating
mode, the ABW and ABW256 bits in WSCR, the ABWCP bit in BCR2, and the P90DDR bit.
Operating
Mode
ABW,
ABW256,
ABWCP
P90DDR
Pin function
Extended Mode
Single-Chip Mode
All 1
One bit is set as

0
0
1

0
1
P90 input pin P90 output pin LWR output pin P90 input pin P90 output pin
Rev. 3.00, 03/04, page 225 of 830