MC68HC11EA9 Datasheet, PDF (57/58 Pages) Motorola, Inc – 8 BIT HCMOS SINGLE CHIP MICROCONTOROLLER WITH A/D CONVERTER

Freescale Semiconductor, Inc.
ADR1–ADR4 — A/D Results
$1031–$1034
$1031
BIT 7
6
5
4
3
2
1
BIT 0
ADR1
$1032
BIT 7
6
5
4
3
2
1
BIT 0
ADR2
$1033
BIT 7
6
5
4
3
2
1
BIT 0
ADR3
$1034
BIT 7
6
5
4
3
2
1
BIT 0
ADR4
Table 24 Analog Input to 8-Bit Result Translation
Bit 7
% ⁽¹⁾
50%
VOLTS ⁽²⁾
2.5
(1) % of V_RH – V_RL
6
25%
5
12.5%
4
6.25%
3
3.12%
1.250
0.625 0.3125 0.1562
(2) Volts for V_RL = 0; V_RH = 5.0 V
2
1.56%
0.0781
1
0.78%
0.0391
Bit 0
0.39%
0.0195
OPTION — System Configuration Options
$1039
BIT 7
6
5
4
3
2
1
BIT 0
ADPU
CSEL
IRQE*
DLY*
CME
—
CR1*
CR0*
RESET:
0
0
0
1
0
0
0
0
* Can be written only once in first 64 cycles after reset in normal modes, or at any time in special modes.
ADPU — A/D Converter Power-Up
0 = A/D converter disabled and powered down
1 = A/D converter is enabled and powered on
CSEL — Clock Select
0 = A/D and EEPROM use the system E clock
1 = A/D and EEPROM use internal RC clock
IRQE — IRQ Select Edge-Sensitive Only
Refer to 5 Resets and Interrupts.
DLY — Enable Oscillator Start-up Delay
0 = No stabilization delay on exit from STOP mode.
1 = A delay of approximately 4000 E-clock cycles is imposed as the MCU exits STOP mode.
CME — Clock Monitor Enable
Refer to 5 Resets and Interrupts.
Bit 2 — Not implemented
Always reads zero
CR[1:0] — COP Timer Rate Select
Refer to 5 Resets and Interrupts.
MC68HC11EA9
MC68HC11EA9TS/D
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