MC908AZ60ACFU Freescale Semiconductor, MC908AZ60ACFU Datasheet - Page 252
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MC908AZ60ACFU
Manufacturer Part Number
MC908AZ60ACFU
Description
IC MCU FLASH 8.4MHZ 60K 64QFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908AZ60ACFUER.pdf
(414 pages)
Specifications of MC908AZ60ACFU
Core Processor
HC08
Core Size
8-Bit
Speed
8.4MHz
Connectivity
CAN, SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
52
Program Memory Size
60KB (60K x 8)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 15x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Input/Output Ports
22.3 Port B
Port B is an 8-bit special function port that shares all of its pins with the analog-to-digital converter.
22.3.1 Port B Data Register
The port B data register contains a data latch for each of the eight port B pins.
PTB[7:0] — Port B Data Bits
ATD[7:0] — ADC Channels
252
These read/write bits are software programmable. Data direction of each port B pin is under the control
of the corresponding bit in data direction register B. Reset has no effect on port B data.
PTB7/ATD7–PTB0/ATD0 are eight of the analog-to-digital converter channels. The ADC channel
select bits, CH[4:0], determine whether the PTB7/ATD7–PTB0/ATD0 pins are ADC channels or
general-purpose I/O pins. If an ADC channel is selected and a read of this corresponding bit in the port
B data register occurs, the data will be 0 if the data direction for this bit is programmed as an input.
Otherwise, the data will reflect the value in the data latch. (See
(ADC)). Data direction register B (DDRB) does not affect the data direction of port B pins that are being
used by the ADC. However, the DDRB bits always determine whether reading port B returns to the
states of the latches or 0.
Alternative
Functions:
Address:
Reset:
Read:
Write:
MC68HC908AZ60A • MC68HC908AS60A • MC68HC908AS60E Data Sheet, Rev. 6
$0001
PTB7
ATD7
Bit 7
Figure 22-5. Port B Data Register (PTB)
PTB6
ATD6
6
PTB5
ATD5
5
Unaffected by Reset
PTB4
ATD4
4
PTB3
ATD3
3
Chapter 26 Analog-to-Digital Converter
ATD2
PTB2
2
ATD1
PTB1
1
Freescale Semiconductor
ATD0
PTB0
Bit 0
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