MCHC908GR8AVFAE Freescale Semiconductor, MCHC908GR8AVFAE Datasheet - Page 133
MCHC908GR8AVFAE
Manufacturer Part Number
MCHC908GR8AVFAE
Description
IC MCU 8K FLASH 8MHZ 32-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MCHC908GR8ACFAE.pdf
(260 pages)
Specifications of MCHC908GR8AVFAE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
21
Program Memory Size
7.5KB (7.5K 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 ~ 105°C
Package / Case
32-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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13.3 Pin Name Conventions
The generic names of the SCI I/O pins are:
SCI I/O (input/output) lines are implemented by sharing parallel I/O port pins. The full name of an SCI
input or output reflects the name of the shared port pin.
names of the SCI I/O pins.
The generic pin names appear in the text of this section.
13.4 Functional Description
Figure 13-3
communication among the MCU and remote devices, including other MCUs. The transmitter and receiver
of the SCI operate independently, although they use the same baud rate generator. During normal
operation, the CPU monitors the status of the SCI, writes the data to be transmitted, and processes
received data.
The baud rate clock source for the SCI can be selected via the configuration bit, SCIBDSRC, of the
CONFIG2 register ($001E). Source selection values are shown in
13.4.1 Data Format
The SCI uses the standard non-return-to-zero mark/space data format illustrated in
Freescale Semiconductor
•
•
RxD (receive data)
TxD (transmit data)
shows the structure of the SCI module. The SCI allows full-duplex, asynchronous, NRZ serial
START
START
BIT
BIT
BIT 0
BIT 0
MC68HC908GR8A • MC68HC908GR4A Data Sheet, Rev. 5
BIT 1
BIT 1
Generic Pin Names:
BIT 2
BIT 2
Table 13-1. Pin Name Conventions
Full Pin Names:
Figure 13-2. SCI Data Formats
BIT 3
BIT 3
BIT M IN SCC1 CLEAR
8-BIT DATA FORMAT
9-BIT DATA FORMAT
BIT M IN SCC1 SET
BIT 4
BIT 4
BIT 5
BIT 5
PTE1/RxD
Table 13-1
RxD
BIT 6
BIT 6
PARITY
BIT 7
BIT 7
BIT
Figure
shows the full names and the generic
PTE0/TxD
PARITY
STOP
BIT 8
TxD
BIT
BIT
13-3.
START
STOP
NEXT
BIT
BIT
START
NEXT
BIT
Pin Name Conventions
Figure
13-2.
133
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