SH7020 Datasheet, PDF (420/509 Pages) Renesas Technology Corp – SuperH™ RISC engine

• Bit 8 (PA4 mode (PA4MD)): PA4MD selects the function of the PA4/WRL (WR) pin.
Bit 8: PA4MD
0
1
Function
Input/output (PA4)
Lower write output (WRL) or write output (WR) (initial value)
• Bits 7 and 6 (PA3 mode (PA3MD1 and PA3MD0)): PA3MD1 and PA3MD0 select the
function of the PA3/CS7/WAIT pin. This pin has a pull-up MOS that is used when it functions
as a WAIT pin to allow selection of pull up or no pull up (for the WAIT pin) using the wait
state control register of the bus state controller (BSC). There is no pull up when if functions as
PA3 or CS7.
Bit 7: PA3MD1
0
1
Bit 6: PA3MD0
0
1
0
1
Function
Input/output (PA3)
Chip select output (CS7)
Wait state input (WAIT) (initial value)
Reserved
• Bits 5 and 4 (PA2 mode (PA2MD1 and PA2MD0)): PA2MD1 and PA2MD0 select the
function of the PA2/CS6/TIOCB0 pin.
Bit 5: PA2MD1
0
1
Bit 4: PA2MD0
0
1
0
1
Function
Input/output (PA2)
Chip select output (CS6) (initial value)
ITU input capture/output compare (TIOCB0)
Reserved
• Bits 3 and 2 (PA1 mode (PA1MD1 and PA1MD0)): PA1MD1 and PA1MD0 select the
function of the PA1/CS5/RAS pin.
Bit 3: PA1MD1
0
1
Bit 2: PA1MD0
0
1
0
1
Function
Input/output (PA1)
Chip select output (CS5) (initial value)
Row address strobe output (RAS)
Reserved
RENESAS 406