S912XEP768J5MAGR Freescale Semiconductor, S912XEP768J5MAGR Datasheet - Page 454

• Manufacturer Part Number: S912XEP768J5MAGR
• Description: 16-bit Microcontrollers - MCU 16-bit 768K Flash
• Manufacturer: Freescale Semiconductor

Specifications of S912XEP768J5MAGR

• Rohs: yes
• Core: HCS12X
• Processor Series: MC9S12
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 768 KB
• Data Ram Size: 48 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 3.3 V to 5 V
• Operating Temperature Range: - 40 C to + 125 C
• Package / Case: LQFP-144
• Mounting Style: SMD/SMT

Chapter 10 XGATE (S12XGATEV3)
SUBH
Operation
RD – IMM8:$00 ⇒ RD
Subtracts a signed immediate 8 bit constant from the content of high byte of register RD and using binary
subtraction and stores the result in the high byte of destination register RD. This instruction can be used
after an SUBL for a 16 bit immediate subtraction.
Example:
CCR Effects
Code and CPU Cycles
454
N:
Z:
V:
C:
SUBH RD, #IMM8
N
∆
Set if bit 15 of the result is set; cleared otherwise.
Set if the result is $0000; cleared otherwise.
Set if a two´s complement overflow resulted from the operation; cleared otherwise.
RD[15]
Set if there is a carry from the bit 15 of the result; cleared otherwise.
RD[15]
Z
∆
SUBL
SUBH
old
old
V
∆
Source Form
& IMM8[7] & RD[15]
& IMM8[7] | RD[15]
C
∆
R2,#LOWBYTE
R2,#HIGHBYTE
old
new
& RD[15]
MC9S12XE-Family Reference Manual Rev. 1.25
Subtract Immediate 8 bit Constant
| RD[15]
Address
Mode
IMM8
new
; R2 = R2 - 16 bit immediate
old
& IMM8[7] & RD[15]
| IMM8[7] & RD[15]
(High Byte)
1
1
0
0
new
1
new
Machine Code
RD
IMM8
SUBH
Freescale Semiconductor
Cycles
P