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HCS12 Datasheet(PDF) 120 Page - Freescale Semiconductor, Inc

Part # HCS12
Description  HCS12 Microcontrollers
PDF  452 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

HCS12 Datasheet(HTML) 120 Page - Freescale Semiconductor, Inc

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S12CPUV2 Reference Manual, Rev. 4.0
120
Freescale Semiconductor
Operation:
If C = 1, then (PC) + $0002 + Rel
⇒ PC
Simple branch
Description:
Tests the C status bit and branches if C = 1.
See 3.8 Relative Addressing Mode for details of branch execution.
BCS
Branch if Carry Set
(Same as BLO)
BCS
CCR Details:
S
X
HIN
Z
V
C
––––––––
Source Form
Address
Mode
Object Code
Access Detail
HCS12
M68HC12
BCS rel8
REL
25 rr
PPP/P(1)
1. PPP/P indicates this instruction takes three cycles to refill the instruction queue if the branch is taken and one program
fetch cycle if the branch is not taken.
PPP/P(1)
Branch
Complementary Branch
Test
Mnemonic
Opcode
Boolean
Test
Mnemonic
Opcode
Comment
r>m
BGT
2E
Z
+ (N ⊕ V) = 0
r
≤m
BLE
2F
Signed
r
≥m
BGE
2C
N
⊕ V = 0
r<m
BLT
2D
Signed
r=m
BEQ
27
Z = 1
r
≠m
BNE
26
Signed
r
≤m
BLE
2F
Z
+ (N ⊕ V) = 1
r>m
BGT
2E
Signed
r<m
BLT
2D
N
⊕ V = 1
r
≥m
BGE
2C
Signed
r>m
BHI
22
C
+ Z = 0
r
≤m
BLS
23
Unsigned
r
≥m
BHS/BCC
24
C = 0
r<m
BLO/BCS
25
Unsigned
r=m
BEQ
27
Z = 1
r
≠m
BNE
26
Unsigned
r
≤m
BLS
23
C
+ Z = 1
r>m
BHI
22
Unsigned
r<m
BLO/BCS
25
C = 1
r
≥m
BHS/BCC
24
Unsigned
Carry
BCS
25
C = 1
No Carry
BCC
24
Simple
Negative
BMI
2B
N = 1
Plus
BPL
2A
Simple
Overflow
BVS
29
V = 1
No Overflow
BVC
28
Simple
r=0
BEQ
27
Z = 1
r
≠0
BNE
26
Simple
Always
BRA
20
—
Never
BRN
21
Unconditional



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