MC68HC908QY1MDTE Freescale Semiconductor, MC68HC908QY1MDTE Datasheet - Page 62
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MC68HC908QY1MDTE
Manufacturer Part Number
MC68HC908QY1MDTE
Description
IC MCU 1.5K FLASH 16-TSSOP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908QY4MDWER.pdf
(184 pages)
Specifications of MC68HC908QY1MDTE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Peripherals
LVD, POR, PWM
Number Of I /o
13
Program Memory Size
1.5KB (1.5K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
16-TSSOP
Processor Series
HC08Q
Core
HC08
Data Bus Width
8 bit
Data Ram Size
128 B
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
13
Number Of Timers
2
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Development Tools By Supplier
FSICEBASE, M68CBL05AE, DEMO908QB8, DEMO908QC16
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Connectivity
-
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.
62
Reset:
Reset:
Read:
Write:
Read:
Write:
X = Indeterminate
15
15
15
Bit
15
0
Bit 7
14
0
H
13
0
6
MC68HC908QY/QT Family Data Sheet, Rev. 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
4
X
X
3
1
2
X
Freescale Semiconductor
X
1
Bit 0
Bit
0
X
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