MC908GR32AMFAE Freescale Semiconductor, MC908GR32AMFAE Datasheet - Page 67

• Manufacturer Part Number: MC908GR32AMFAE
• Description: IC MCU 8BIT 32K FLASH 48-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908GR32AMFAE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 37
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 24x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

3.8.2 ADC Data Register High and Data Register Low
3.8.2.1 Left Justified Mode
In left justified mode, the ADRH register holds the eight MSBs of the
10-bit result. The ADRL register holds the two LSBs of the 10-bit result. All other bits read as 0. ADRH
and ADRL are updated each time an ADC single channel conversion completes. Reading ADRH latches
the contents of ADRL until ADRL is read. All subsequent results will be lost until the ADRH and ADRL
reads are completed.
Freescale Semiconductor
Address:
Address:
1. If any unused channels are selected, the resulting ADC conversion will be unknown or re-
ADCH4
Reset:
Reset:
Read:
Read:
Write:
Write:
served.
MC68HC908GR60A • MC68HC908GR48A • MC68HC908GR32A Data Sheet, Rev. 5
1
1
1
1
1
1
1
1
1
↓
1
1
1
1
Figure 3-5. ADC Data Register High (ADRH) and Low (ADRL)
$003D
$003E
Bit 7
AD9
AD1
ADCH3
Table 3-1. Mux Channel Select
↓
0
0
0
0
0
0
0
0
1
1
1
1
1
= Unimplemented
AD8
AD0
6
ADCH2
0
0
0
0
1
1
1
1
0
↓
1
1
1
1
AD7
5
0
ADCH1
Unaffected by reset
Unaffected by reset
AD6
↓
0
0
1
1
0
0
1
1
0
0
0
1
1
4
0
AD5
ADCH0
(1)
3
0
0
1
0
1
0
1
0
1
0
↓
0
1
0
1
(Continued)
AD4
2
0
ADC power off
Input Select
PTG0/AD16
PTG1/AD17
PTG2/AD18
PTG3/AD19
PTG4/AD20
PTG5/AD21
PTG6/AD22
PTG7/AD23
Unused
V
V
AD3
REFH
1
0
REFL
ADRH
ADRL
Bit 0
AD2
0
I/O Registers
67