UPD78F0886GA(A)-GAM-AX NEC, UPD78F0886GA(A)-GAM-AX Datasheet - Page 66

• Manufacturer Part Number: UPD78F0886GA(A)-GAM-AX
• Description: 8BIT MCU, 60K FLASH, 3KB RAM, CAN
• Manufacturer: NEC

Specifications of UPD78F0886GA(A)-GAM-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 41
• Ram Memory Size: 3KB
• Cpu Speed: 20MHz
• No. Of Timers: 8
• No. Of Pwm Channels: 6
• Digital Ic Case Style: LQFP
• Core Size: 8bit
• Program Memory Size: 60KB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

66
[Instruction format]
[Operation]
[Operand]
[Flag]
[Description]
[Description example]
CMPW
• The source operand (src) specified by the 2nd operand is subtracted from the destination operand (dst)
• If the subtraction result is 0, the Z flag is set (1). In all other cases, the Z flag is cleared (0).
• If the subtraction generates a borrow out of bit 15, the CY flag is set (1). In all other cases, the CY flag is
• As a result of subtraction, the AC flag becomes undefined.
CMPW AX, #ABCDH; ABCDH is subtracted from the AX register and only the flags are changed (comparison
specified by the 1st operand.
The subtraction result is not stored anywhere and only the Z, AC and CY flags are changed.
cleared (0).
Mnemonic
Z
×
CMPW
AC
×
AX, #word
CMPW dst, src
dst – src
CY
×
Operand(dst,src)
of the AX register and the immediate data).
CHAPTER 5 EXPLANATION OF INSTRUCTIONS
User's Manual U12326EJ4V0UM
Word Data Comparison
Compare Word