CDP6805E2CE 데이터 시트보기 (PDF) - InnovASIC, Inc

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CDP6805E2CE

Microprocessor Unit

InnovASIC, Inc 

IA6805E2

Microprocessor Unit

Data Sheet

As of Production Version 00

Bit Manipulation Instructions:

The MPU is capable of altering any bits residing in the first 256 bytes of memory. An

additional feature allows the software to test and branch on the state of any bit within these

locations. For test and branch instructions the value of the bit tested is placed in the carry bit

of the condition code register.

Function

Mnemonic

n = 0…7

Branch if bit n set

Branch if bit n clear

Set bit n

Clear bit n

BRSET n

BRCLR n

BSET n

BCLR n

Branch Instructions:

If a specific condition is met, the instruction branches. If not, no operation is performed.

Function

Branch always

Branch never

Branch if higher

Branch if lower or same

Branch if carry clear

Branch if higher or same

Branch if carry set

Branch if lower

Branch if not equal

Branch if equal

Branch if half carry clear

Branch if half carry set

Branch if plus

Branch if minus

Branch if interrupt mask bit clear

Branch if interrupt mask bit set

Branch if interrupt line low

Branch if interrupt line high

Branch to subroutine

Mnemonic

BRA

BRN

BHI

BLS

BCC

BHS

BCS

BLO

BNE

BEQ

BHCC

BHCS

BPL

BMI

BMC

BMS

BIL

BIH

BSR

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innovASIC

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