参数资料
型号: PSD8134V90JT
厂商: 意法半导体
英文描述: Flash In-System Programmable ISP Peripherals For 8-bit MCUs
中文描述: Flash在系统可编程ISP的外设的8位微控制器
文件页数: 61/110页
文件大小: 1685K
代理商: PSD8134V90JT
61/110
PSD813F1
Port C
Functionality and Structure
Port C can be configured to perform one or more
of the following functions (see Figure
30
):
MCU I/O Mode
CPLD Output
McellBC7-McellBC0 outputs
can be connected to Port B or Port C.
CPLD Input
via the Input Macrocells (IMC)
Address In
Additional high address inputs
using the Input Macrocells (IMC).
In-System Programming (ISP)
JTAG port
can be enabled for programming/erase of the
PSD device. (See the section entitled
PROGRAMMING IN-CIRCUIT USING THE
I
I
I
I
I
JTAG SERIAL INTERFACE, page 71
, for
more information on JTAG programming.)
Open Drain
Port C pins can be configured in
Open Drain Mode
Battery Backup features
PC2 can be
configured as a battery input pin (V
STBY
).
PC4 can be configured as a Battery-on Indica-
tor output pin (V
BATON
), indicating when V
CC
is less than V
BAT
.
Port C does not support Address Out mode, and
therefore no Control Register is required.
Pin PC7 may be configured as the DBE input in
certain MCU interfaces.
I
I
Figure 30. Port C Structure
Note: 1. ISP or battery back-up.
I
DATA OUT
REG.
D
Q
D
Q
WR
WR
MCELLBC[7:0]
ENABLE PRODUCT TERM (.OE)
READ MUX
P
D
B
CPLD-INPUT
DIR REG.
INPUT
MACROCELL
ENABLE OUT
SPECIAL FUNCTION1
SPECIAL FUNCTION1
CONFIGURATION
BIT
DATA IN
OUTPUT
SELECT
OUTPUT
MUX
PORT C PIN
DATA OUT
AI02888B
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