Renesas R5S72621 Manual Do Utilizador

 
Section 32   General Purpose I/O Ports 

Page 1692 of 2108 

 

R01UH0134EJ0400  Rev. 4.00 

 

 Sep 

24, 

2014 

SH7262 Group, SH7264 Group

9, 8 

PB22MD[1:0]  00 

R/W

PB22 Mode 

Select the function of the PB22. 

00: PB22 

01: A22 

10: 

CS4 

11: Setting prohibited 

7, 6 

 All 

0 

R 

Reserved 

These bits are always read as 0. The write value 
should always be 0. 

5, 4 

PB21MD[1:0]  00 

R/W

PB21 Mode 

Select the function of the PB21. 

00: PB21 

01: A21 

10: SPDIF_OUT (640-Kbyte version only) 

11: Setting prohibited 

Note:   For 1-Mbyte version, bit 5 is reserved and 

always read as 0. The write value should 
always be 0. 

3, 2 

 All 

0 

R 

Reserved 

These bits are always read as 0. The write value 
should always be 0. 

1, 0 

PB20MD[1:0]  00/01 

R/W

PB20 Mode 

Select the function of the PB20. 

Boot mode 0 

00: Setting prohibited 

01: A20 (initial value) 

10: Setting prohibited 

11: Setting prohibited 

Boot mode 1 to 3 

00: PB20 (initial value) 

01: A20 

10: SPDIF_IN (640-Kbyte version only)  

11: Setting prohibited 

 

 

 

 

Note:   For 1-Mbyte version, bit 1 is reserved and 

always read as 0. The write value should 
always be 0.