RL78/F13, F14 CHAPTER 4 PORT FUNCTIONS
R01UH0368EJ0210 Rev.2.10 341
Dec 10, 2015
4.3.19 SNOOZE status output control register 0 (PSNZCNT0)
This register is used to output signals indicating that the SNOOZE mode has been entered through external pins.
It can be set by a 1-bit or 8-bit memory manipulation instruction.
Bits 7, 6, 3, and 2 are read-only because no functions are assigned to them. The other bits can be read or written to.
Any reset source clears this register to 00H.
Cautions 1. Set the target port pin to the output mode and the output latch to 0 before using the SNOOZE
status output function.
2. Stop the output from peripheral functions assigned to output-enabled port pins and make the
register settings at the time of SNZOUT output.
3. Set WUTMMCK0 to 1 at the time of SNZOUT output.
Figure 4-92. Format of SNOOZE Status Output Control Register 0 (PSNZCNT0)
Address: F0222H After reset: 00H R/W
Symbol 7 6 5 4 3 2 1 0
PSNZCNT0 0 0 SNZACT1 OUTEN1 0 0 SNZACT0 OUTEN0
SNZACT1 SNZOUT1 active level
0 When PIOR61 = 0: Active level of SNOOZE status output to P125 is "H".
When PIOR61 = 1: Active level of SNOOZE status output to P56 is "H" (only in 100-pin or 80-pin
products).
1 When PIOR61 = 0: Active level of SNOOZE status output to P125 is "L".
When PIOR61 = 1: Active level of SNOOZE status output to P56 is "L" (only in 100-pin or 80-pin
products).
OUTEN1 SNZOUT1 enable/disable
0 When PIOR61 = 0: SNOOZE status output to P125 is disabled.
When PIOR61 = 1: SNOOZE status output to P56 is disabled (only in 100-pin or 80-pin products).
1 When PIOR61 = 0: SNOOZE status output to P125 is enabled.
When PIOR61 = 1: SNOOZE status output to P56 is enabled (only in 100-pin or 80-pin products).
SNZACT0 SNZOUT0 active level
0 When PIOR60 = 0: Active level of SNOOZE status output to P30 is "H".
When PIOR60 = 1: Active level of SNOOZE status output to P57 is "H" (only in 100-pin or 80-pin
products).
1 When PIOR60 = 0: Active level of SNOOZE status output to P30 is "L".
When PIOR60 = 1: Active level of SNOOZE status output to P57 is "L" (only in 100-pin or 80-pin
products).
OUTEN0 SNZOUT0 enable/disable
0 When PIOR60 = 0: SNOOZE status output to P30 is disabled.
When PIOR60 = 1: SNOOZE status output to P57 is disabled (only in 100-pin or 80-pin products).
1 When PIOR60 = 0: SNOOZE status output to P30 is enabled.
When PIOR60 = 1: SNOOZE status output to P57 is enabled (only in 100-pin or 80-pin products).
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