HD6437020 Datasheet, PDF (416/507 Pages) Hitachi Semiconductor – SuperH™ RISC engine

• Bits 7 and 6 (PA11 mode (PA11MD1 and PA11MD0)): These bits select the function of the
PA11/DPH/TIOCB1 pin.
Bit 7:
PA11MD1
0
1
Bit 6:
PA11MD0
0
1
0
1
Function
Input/output (PA11) (initial value)
Upper data bus parity input/output (DPH)
ITU input capture/output compare (TIOCB1)
Reserved
• Bits 5 and 4 (PA10 mode (PA10MD1 and PA10MD0)): These bits select the function of the
PA10/DPL/TIOCA1 pin.
Bit 5:
PA10MD1
0
1
Bit 4:
PA10MD0
0
1
0
1
Function
Input/output (PA10) (initial value)
Lower data bus parity input/output (DPL)
ITU input capture/output compare (TIOCA1)
Reserved
• Bits 3 and 2 (PA9 mode (PA9MD1 and PA9MD0)): These bits select the function of the
PA9/AH/IRQOUT pin.
Bit 3:
PA9MD1
0
1
Bit 2:
PA9MD0
0
1
0
1
Function
Input/output (PA9) (initial value)
Address hold output (AH)
Reserved
Interrupt request output (IRQOUT)
• Bit 1 (reserved): This bit always reads as 1. The write value should always be 1.
• Bit 0 (PA8 mode (PA8MD)): PA8MD selects the function of the PA8/BREQ.
Bit 0: PA8MD
0
1
Function
Input/output (PA8) (initial value)
Bus request input (BREQ)
HITACHI 404