参数资料
型号: MC68HC11C0MFN2
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 2 MHz, MICROCONTROLLER, PQCC68
封装: PLASTIC, LCC-68
文件页数: 71/76页
文件大小: 394K
代理商: MC68HC11C0MFN2
MC68HC11C0
MOTOROLA
MC68HC11C0TS/D
73
CCF — Conversions Complete Flag
Set after an A/D conversion cycle
Cleared when ADCTL is written
Bit 6 — Not implemented
Always reads zero
SCAN — Continuous Scan Control
0 = Perform four conversions and stop
1 = Convert the four channels and continuously update result registers.
MULT — Multiple Channel/Single Channel Control
0 = Convert single channel selected
1 = Convert four channels simultaneously
CD–CA — Channel Select D through A
*Used for factory testing
ADCTL — A/D Control/Status
$0030
Bit 7
654321
Bit 0
CCF
SCAN
MULT
CD
CC
CB
CA
RESET:
I
0
IIIIII
Table 17 A/D Converter Channel Assignments
Channel Select Control Bits
Channel
Signal
Result in ADRx if
MULT = 1
Result in ADRx if
MULT = 0
CD
CC
CB
CA
0
AD0
ADR1
ADR[4:1]
0
1
AD1
ADR2
ADR[4:1]
0
1
0
AD2
ADR3
ADR[4:1]
0
1
AD3
ADR4
ADR[4:1]
0
1
0
Reserved
0
1
0
1
Reserved
0
1
0
Reserved
0
1
Reserved
1
0
Reserved
1
0
1
Reserved
1
0
1
0
Reserved
1
0
1
Reserved
1
100
VRH*
ADR1
ADR[4:1]
1
101
VRL*
ADR2
ADR[4:1]
1
110
(VRH)/2*
ADR3
ADR[4:1]
1
Test/Reserved*
ADR4
ADR[4:1]
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