MC908AZ60ACFU Freescale Semiconductor, MC908AZ60ACFU Datasheet - Page 252
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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