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PIC32MX320F128HT-80I/MR 用户编程技术手册 - Microchip（微芯）
制造商:
Microchip（微芯）
分类:
32位控制器
封装:
QFN-64
描述:
32位微控制器 - MCU 64Pin, 128 KB Flash 16 KB RAM, 80 MHz
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PIC32MX320F128HT-80I/MR数据手册
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若手册格式错乱，请下载阅览PDF原文件
PIC32
DS60001145S-page 6 2007-2016 Microchip Technology Inc.
4.2 2-wire Interface
Another possible interface is the 2-wire ICSP port.
Table 4-2 lists the required pin connections. This
interface uses the following two communication lines to
transfer data to and from the PIC32 device being
programmed:
• Serial Program Clock (PGECx)
• Serial Program Data (PGEDx)
These signals are described in the following two
sections. Refer to the specific device data sheet for the
connection of the signals to the chip pins.
4.2.1 SERIAL PROGRAM CLOCK
(PGEC
X
)
PGECx is the clock that controls the updating of the
TAP controller and the shifting of data through the
Instruction or selected Data registers. PGECx is
independent of the processor clock, with respect to
both frequency and phase.
4.2.2 SERIAL PROGRAM DATA (PGED
X
)
PGEDx is the data input/output to the Instruction or
selected Data Registers, it is also the control signal for
the TAP controller. This signal is sampled on the falling
edge of PGECx for some TAP controller states.
TABLE 4-2: 2-WIRE INTERFACE PINS
Device
Pin Name
Programmer
Pin Name
Pin Type Pin Description
MCLR
MCLR P Programming Enable
ENVREG
(2)
N/A I Enable for On-Chip Voltage Regulator
V
DD
, V
BAT
(2)
, and AV
DD
(1)
V
DD
P Power Supply
V
DD
1
V
8
(2)
and V
DDR
1
V
8
(2)
N/A P Power Supply for DDR Interface
V
SS
, V
SS
1
V
8
(2)
, and AV
SS
(1)
V
SS
PGround
V
CAP
(2)
N/A P CPU Logic Filter Capacitor Connection
PGECx PGEC I Primary Programming Pin Pair: Serial Clock
PGEDx PGED I/O Primary Programming Pin Pair: Serial Data
Legend: I = Input O = Output P = Power
Note 1: All power supply and ground pins must be connected, including analog supplies (AV
DD
) and ground (AV
SS
).
2: This pin is not available on all devices. Refer to the “Pin Diagrams” or “Pin Tables” section in the
specific device data sheet to determine availability.
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