MC908GR4CDWE Freescale Semiconductor, MC908GR4CDWE Datasheet - Page 152

• Manufacturer Part Number: MC908GR4CDWE
• Description: IC MCU 4K FLASH 8MHZ 28-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908GR4CDWE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 17
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Controller Family/series: HC08
• No. Of I/o's: 21
• Ram Memory Size: 384Byte
• Cpu Speed: 8MHz
• No. Of Timers: 1
• Embedded Interface Type: I2C, SCI, SPI
• Rohs Compliant: Yes
• Processor Series: HC08GR
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 384 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8.2 MHz
• Number Of Programmable I/os: 21
• Number Of Timers: 3
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: FSICEBASE, DEMO908GZ60E, M68CBL05CE, M68EML08GPGTE
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 6 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Input/Output Ports (I/O)
16.4.3 Port C Input Pullup Enable Register
The port C input pullup enable register (PTCPUE) contains a software configurable pullup device for each
of the two port C pins. Each bit is individually configurable and requires that the data direction register,
DDRC, bit be configured as an input. Each pullup is automatically and dynamically disabled when a port
bit’s DDRC is configured for output mode.
PTCPUE1–PTCPUE0 — Port C Input Pullup Enable Bits
16.5 Port D
Port D is an 7-bit special-function port that shares four of its pins with the serial peripheral interface (SPI)
module and three of its pins with two timer interface (TIM1 and TIM2) modules. Port D also has software
configurable pullup devices if configured as an input port.
16.5.1 Port D Data Register
The port D data register (PTD) contains a data latch for each of the seven port D pins.
PTD6–PTD0 — Port D Data Bits
T2CH0 — Timer 2 Channel I/O Bits
152
These writeable bits are software programmable to enable pullup devices on an input port bit.
These read/write bits are software-programmable. Data direction of each port D pin is under the control
of the corresponding bit in data direction register D. Reset has no effect on port D data.
The PTD6/T2CH0 pin is the TIM2 input capture/output compare pin. The edge/level select bits,
ELSxB:ELSxA, determine whether the PTD6/T2CH0 pin is a timer channel I/O pin or a
general-purpose I/O pin. See
1 = Corresponding port C pin configured to have internal pullup
0 = Corresponding port C pin internal pullup disconnected
Alternative Function:
Address:
Reset:
Read:
Write:
Address:
Reset:
Read:
Write:
Figure 16-12. Port C Input Pullup Enable Register (PTCPUE)
$000E
Bit 7
0
0
$0003
Bit 7
0
MC68HC908GR8 • MC68HC908GR4 Data Sheet, Rev. 7
= Unimplemented
Figure 16-13. Port D Data Register (PTD)
Chapter 22 Timer Interface Module
6
0
0
= Unimplemented
T2CH0
PTD6
6
5
0
0
T1CH1
PTD5
5
4
0
0
T1CH0
Unaffected by reset
PTD4
4
3
0
0
SPSCK
PTD3
3
(TIM).
2
0
0
PTD2
MOSI
2
PTCPUE1
1
0
PTD1
MISO
1
Freescale Semiconductor
PTCPUE0
Bit 0
0
PTD0
Bit 0
SS