MC68908GZ8MFAE Freescale Semiconductor, MC68908GZ8MFAE Datasheet - Page 163

IC MCU 8BIT 8K FLASH 48-LQFP

MC68908GZ8MFAE

Manufacturer Part Number
MC68908GZ8MFAE
Description
IC MCU 8BIT 8K FLASH 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet

Specifications of MC68908GZ8MFAE

Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
CAN, LIN, SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
37
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
48-LQFP
Processor Series
M689xx
Core
HC08
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
SPI, SCI, CAN
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
37
Number Of Timers
2
Operating Supply Voltage
5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Development Tools By Supplier
FSICEBASE, M68CBL05AE, DEMO908GZ60E, M68EML08GZE
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 16 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
 Details
DDRC6–DDRC0 — Data Direction Register C Bits
Figure 13-11
When bit DDRCx is a logic 1, reading address $0002 reads the PTCx data latch. When bit DDRCx is a
logic 0, reading address $0002 reads the voltage level on the pin. The data latch can always be written,
regardless of the state of its data direction bit.
Freescale Semiconductor
1. X = Don’t care
2. I/O pin pulled up to V
3. Writing affects data register, but does not affect input.
4. Hi-Z = High impedance
PTCPUE
These read/write bits control port C data direction. Reset clears DDRC6–DDRC0, configuring all port
C pins as inputs.
Bit
X
1 = Corresponding port C pin configured as output
0 = Corresponding port C pin configured as input
1
0
shows the port C I/O logic.
Avoid glitches on port C pins by writing to the port C data register before
changing data direction register C bits from 0 to 1.
DDRC
Bit
0
0
1
DD
READ DDRC ($0006)
WRITE DDRC ($0006)
WRITE PTC ($0002)
READ PTC ($0002)
PTCPUEx
by internal pullup device.
PTC
X
Bit
X
X
(1)
MC68HC908GZ16 • MC68HC908GZ8 Data Sheet, Rev. 4
Input, Hi-Z
Input, V
RESET
Table 13-4. Port C Pin Functions
Figure 13-11. Port C I/O Circuit
I/O Pin
Output
Mode
V
DD
DD
INTERNAL
PULLUP
DEVICE
(2)
(4)
Table 13-4
NOTE
DDRCx
Accesses to DDRC
PTCx
DDRC6–DDRC0
DDRC6–DDRC0
DDRC6–DDRC0
Read/Write
summarizes the operation of the port C pins.
PTC6–PTC0
Read
Pin
Pin
Accesses to PTC
PTCx
PTC6–PTC0
PTC6–PTC0
PTC6–PTC0
Write
Port C
(3)
(3)
163

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