Datasheet

78K0/Kx2-L CHAPTER 4 PORT FUNCTIONS
R01UH0028EJ0400 Rev.4.00 180
Sep 27, 2010
(5) Port output mode register 6 (POM6)
This register sets the output mode of P60 to P63 in 1-bit units.
During I
2
C communication, set POM60 and POM61 to 1.
In the 78K0/KY2-L and 78K0/KA2-L, clear POM60 to 0 when using the P60/TxD6/SCLA0 pin as the data output of
serial interface UART6.
This register can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation clears this register to 00H.
Figure 4-46. Format of Port Output Mode Register 6 (POM6)
Address: FF2AH After reset: 00H R/W
Symbol 7 6 5 4 3 2 1 0
POM6 0 0 0 0
POM63
Note
POM62
Note
POM61 POM60
POM6n P6n pin output mode selection (n = 0 to 3)
0 Normal output (CMOS output) mode
1 N-ch open drain output (VDD tolerance) mode
Note 78K0/KC2-L only
(6) Reset pin mode register (RSTMASK)
This register sets the pin function of RESET/P125 (external reset input/input-dedicated port).
This register can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation clears this register to 00H.
Figure 4-47. Format of Reset Pin Mode Register (RSTMASK)
Address: FF2DH After reset: 00H R/W
Symbol 7 6 5 4 3 2 1 0
RSTMASK 0 0 RSTM 0 0 0 0 0
RSTM RESET/P125 pin function selection
0 Using as external reset input (RESET)
1 Using as input-dedicated port (P125)
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