MC68908GZ8MFAE Freescale Semiconductor, MC68908GZ8MFAE Datasheet - Page 88
![IC MCU 8BIT 8K FLASH 48-LQFP](/photos/37/62/376278/tqfp-48_sml.jpg)
MC68908GZ8MFAE
Manufacturer Part Number
MC68908GZ8MFAE
Description
IC MCU 8BIT 8K FLASH 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC68908GZ8CFJER.pdf
(314 pages)
Specifications of MC68908GZ8MFAE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
CAN, LIN, SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
37
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
48-LQFP
Processor Series
M689xx
Core
HC08
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
SPI, SCI, CAN
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
37
Number Of Timers
2
Operating Supply Voltage
5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Development Tools By Supplier
FSICEBASE, M68CBL05AE, DEMO908GZ60E, M68EML08GZE
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 16 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
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Central Processor Unit (CPU)
7.3.1 Accumulator
The accumulator is a general-purpose 8-bit register. The CPU uses the accumulator to hold operands and
the results of arithmetic/logic operations.
7.3.2 Index Register
The 16-bit index register allows indexed addressing of a 64-Kbyte memory space. H is the upper byte of
the index register, and X is the lower byte. H:X is the concatenated 16-bit index register.
In the indexed addressing modes, the CPU uses the contents of the index register to determine the
conditional address of the operand.
The index register can serve also as a temporary data storage location.
88
Reset:
Reset:
Read:
Write:
Read:
Write:
X = Indeterminate
15
15
15
Bit
15
0
Bit 7
14
0
MC68HC908GZ16 • MC68HC908GZ8 Data Sheet, Rev. 4
H
13
0
6
12
0
Figure 7-3. Index Register (H:X)
Figure 7-2. Accumulator (A)
Figure 7-1. CPU Registers
11
7
7
V 1 1 H I N Z C
0
5
10
0
X
9
0
Unaffected by reset
4
8
0
0
0
0
0
0
X
7
ACCUMULATOR (A)
INDEX REGISTER (H:X)
STACK POINTER (SP)
PROGRAM COUNTER (PC)
CONDITION CODE REGISTER (CCR)
CARRY/BORROW FLAG
ZERO FLAG
NEGATIVE FLAG
INTERRUPT MASK
HALF-CARRY FLAG
TWO’S COMPLEMENT OVERFLOW FLAG
3
X
6
X
5
2
X
4
X
3
1
2
X
Freescale Semiconductor
X
1
Bit 0
Bit
0
X
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