SN8F27E64KB datasheet(84/192 Pages) SONIX

84 / 192 page

SN8F27E60 Series

8-Bit Flash Micro-Controller with Embedded ICE and ISP

SONiX TECHNOLOGY CO., LTD

Page 84

Version 1.4



Example: Set P4.1 to be general purpose input mode. P4CON.1 must be set as

“0”.

; Check GCHS and CHS [3:0] status.

B0BCLR

FGCHS

;If CHS[3:0] point to P4.1 (CHS[3:0] = 0001B), set

GCHS=0

;If CHS[3:0]

don’t point to P4.1 (CHS[3:0] ≠ 0001B), don’t

care GCHS status.

; Clear P4CON.

B0BCLR

P4CON.1

; Enable P4.1 digital function.

; Enable P4.1 input mode.

B0BCLR

P4M.1

; Set P4.1 as input mode.



Example: Set P4.1 to be general purpose output. P4CON.1 must be set as

“0”.

; Check GCHS and CHS [3:0] status.

B0BCLR

FGCHS

; If CHS [3:0] point to P4.1 (CHS [3:0] = 0001B), set

GCHS=0.

; If CHS [3:0]

don’t point to P4.1 (CHS [3:0] ≠ 0001B),

don’t care GCHS status.

; Clear P4CON.

B0BCLR

P4CON.1

; Enable P4.1 digital function.

; Set P4.1 output buffer to avoid glitch.

B0BSET

P4.1

; Set P4.1 buffer as

“1”.

; or

B0BCLR

P4.1

; Set P4.1 buffer as

“0”.

; Enable P4.1 output mode.

B0BSET

P4M.1

; Set P4.1 as input mode.

SN8F27E64KB Datasheet(PDF) 84 Page - SONiX Technology Company

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