MC908AZ60ACFU Freescale Semiconductor, MC908AZ60ACFU Datasheet - Page 265
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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22.9 Port H
Port H is a 2-bit special function port that shares all of its pins with the keyboard interrupt module (KBD).
Note that Port H is only available on 64-pin package options.
22.9.1 Port H Data Register
The port H data register contains a data latch for each of the two port H pins.
PTH[1:0] — Port H Data Bits
KBD[4:3] — Keyboard Wake-up pins
22.9.2 Data Direction Register H
Data direction register H determines whether each port H pin is an input or an output. Writing a logic 1 to
a DDRH bit enables the output buffer for the corresponding port H pin; a logic 0 disables the output buffer.
DDRH[1:0] — Data Direction Register H Bits
Freescale Semiconductor
These read/write bits are software programmable. Data direction of each port H pin is under the control
of the corresponding bit in data direction register H. Reset has no effect on PTH[1:0].
The keyboard interrupt enable bits, KBIE[4:3], in the keyboard interrupt control register, enable the port
H pins as external interrupt pins (See
These read/write bits control port H data direction. Reset clears DDRG[1:0], configuring all port H pins
as inputs.
1 = Corresponding port H pin configured as output
0 = Corresponding port H pin configured as input
Alternative
Function:
Address:
Address:
Avoid glitches on port H pins by writing to the port H data register before
changing data direction register H bits from 0 to 1.
Reset:
Reset:
Read:
Read:
Write:
Write:
MC68HC908AZ60A • MC68HC908AS60A • MC68HC908AS60E Data Sheet, Rev. 6
$000B
$000F
Bit 7
Bit 7
R
R
R
R
0
0
0
Figure 22-24. Data Direction Register H (DDRH)
Figure 22-23. Port H Data Register (PTH)
= Reserved
= Reserved
R
R
6
0
6
0
0
Chapter 24 Keyboard Module
R
R
5
0
5
0
0
NOTE
Unaffected by Reset
R
R
4
0
4
0
0
R
R
3
0
3
0
0
R
R
2
0
2
0
0
(KBI)).
DDRH1
PTH1
KBD4
1
1
0
DDRH0
PTH0
KBD3
Bit 0
Bit 0
0
Port H
265
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