RL78/F13, F14 CHAPTER 4 PORT FUNCTIONS
R01UH0368EJ0210 Rev.2.10 340
Dec 10, 2015
4.3.18 Port output slew rate register (PSRSEL)
This register is used to select the slew rate for the port output.
It can be set by a 1-bit or 8-bit memory manipulation instruction.
Any reset source clears this register to 00H.
Caution The slew rate of target pins including the alternate functions is changed.
Figure 4-91. Format of Port Output Slew Rate Register (PSRSEL)
Address: F0220H After reset: 00H R/W
Symbol 7 6 5 4 3 2 1 0
PSRSEL 0 0 PSR140 PSR14 PSR120 PSR30 PSR12 PSR10
PSR140 Control target output port: P140/PCLBUZ0
0 Normal slew rate
1 Special slew rate (slower than normal slew rate)
Caution PSR140 is not provided in the 32-, 30-, or 20-pin products.
PSR14 Control target output port: P14/SCK01/SCL01/TO06/TRDIOC0
0 Normal slew rate
1 Special slew rate (slower than normal slew rate)
PSR120 Control target output port: P120/SO01/TO07/TRDIOD0
0 Normal slew rate
1 Special slew rate (slower than normal slew rate)
PSR30 Control target output port: P30/TO01/TRDIOD1/SNZOUT0
0 Normal slew rate
1 Special slew rate (slower than normal slew rate)
PSR12 Control target output port: P12/SO10/TO11/(TRDIOD0)/TXD1/SNZOUT3
0 Normal slew rate
1 Special slew rate (slower than normal slew rate)
Caution PSR12 is not provided in the 20-pin products.
PSR10 Control target output port: P10/SCK10/TO13/TRJO0/SCL10/LTXD1/CTXD0
0 Normal slew rate
1 Special slew rate (slower than normal slew rate)
Caution PSR10 is not provided in the 20-pin products.
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