参数资料
型号: MC68HC11FC0CFU5
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: Technical Summary 8-Bit Microcontroller
中文描述: 8-BIT, 6 MHz, MICROCONTROLLER, PQFP64
封装: QFP-64
文件页数: 52/74页
文件大小: 513K
代理商: MC68HC11FC0CFU5
MOTOROLA
MC68HC11F1/FC0
56
MC68HC11FTS/D
Each read-only result register holds an eight-bit conversion result. Writes to these registers have no ef-
fect. Data in the A/D converter result registers is valid when the CCF flag in the ADCTL register is set,
indicating a conversion sequence is complete. If conversion results are needed sooner, refer to Figure
16, which shows the A/D conversion sequence diagram.
*Can be written only once in first 64 cycles out of reset in normal modes, or at any time in special modes.
ADPU — A/D Power Up
0 = A/D powered down
1 = A/D powered up
CSEL
— Clock Select
0 = A/D and EEPROM use system E-Clock
1 = A/D and EEPROM use internal RC clock
NOTES:
1. % of VRH–VRL
2. Volts for VRL = 0; VRH = 5.0 V
ADR1 – ADR4 — A/D Results
$x031 – $x034
$x031
Bit 7
654321
Bit 0
ADR1
$x032
Bit 7
654321
Bit 0
ADR2
$x033
Bit 7
654321
Bit 0
ADR3
$x034
Bit 7
654321
Bit 0
ADR4
Table 25 Analog Input to 8-Bit Result Translation Table
Bit 7
654321
Bit 0
Percentage1
50%
25%
12.5%
6.25%
3.12%
1.56%
0.78%
0.39%
Volts2
2.500
1.250
0.625
0.3125
0.1562
0.0781
0.0391
0.0195
OPTION — System Configuration Options
$x039
Bit 7
6
5
4
3
2
1
Bit 0
ADPU
CSEL
IRQE*
DLY*
CME
FCME*
CR1*
CR0*
RESET:
0
1
0
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