MC68HC908GR16VFJ Freescale Semiconductor, MC68HC908GR16VFJ Datasheet - Page 129
MC68HC908GR16VFJ
Manufacturer Part Number
MC68HC908GR16VFJ
Description
IC MCU 16K FLASH 8MHZ SPI 32LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC68908GR16CFJE.pdf
(276 pages)
Specifications of MC68HC908GR16VFJ
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
LIN, SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
21
Program Memory Size
16KB (16K 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 ~ 105°C
Package / Case
32-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Quantity
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Part Number:
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When bit DDRCx is a 1, reading address $0002 reads the PTCx data latch. When bit DDRCx is a 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.
12.4.3 Port C Input Pullup Enable Register
The port C input pullup enable register (PTCPUE) contains a software configurable pullup device for each
of the 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.
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
Bit
1
0
X
Address:
DDRC
Reset:
Read:
Write:
Bit
0
0
1
Figure 12-12. Port C Input Pullup Enable Register (PTCPUE)
DD
READ DDRC ($0006)
WRITE DDRC ($0006)
WRITE PTC ($0002)
READ PTC ($0002)
PTCPUEx
$000E
Bit 7
by internal pullup device.
PTC
0
0
X
Bit
X
X
(1)
= Unimplemented
PTCPUE6
Input, Hi-Z
Input, V
6
0
RESET
Table 12-4. Port C Pin Functions
I/O Pin
Output
MC68HC908GR16 Data Sheet, Rev. 5.0
Mode
Figure 12-11. Port C I/O Circuit
DD
PTCPUE5
V
DD
INTERNAL
PULLUP
DEVICE
(2)
(4)
5
0
Table 12-4
PTCPUE4
DDRCx
Accesses to DDRC
PTCx
DDRC6–DDRC0
DDRC6–DDRC0
DDRC6–DDRC0
4
0
Read/Write
PTCPUE3
summarizes the operation of the port C pins.
3
0
PTCPUE2
2
0
PTC6–PTC0
Read
PTCPUE1
Pin
Pin
1
0
Accesses to PTC
PTCPUE0
PTCx
Bit 0
0
PTC6–PTC0
PTC6–PTC0
PTC6–PTC0
Write
Port C
(3)
(3)
129
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