參數(shù)資料
型號(hào): PSD413A2V-A-20JI
廠商: 意法半導(dǎo)體
英文描述: Flash In-System Programmable ISP Peripherals For 8-bit MCUs
中文描述: Flash在系統(tǒng)可編程ISP的外設(shè)的8位微控制器
文件頁數(shù): 11/120頁
文件大小: 563K
代理商: PSD413A2V-A-20JI
Preliminary
PSD813F1-A
7
PSD813F1
Architectural
Overview
(cont.)
5.4 I/OPorts
The PSD813F1 has 27 I/O pins divided among four ports (Port A, B, C, and D). Each
I/O pin can be individually configured for different functions. Ports A, B, C and D can be
configured as standard MCU I/O ports, PLD I/O, or latched address outputs for
microcontrollers using multiplexed address/data busses.
The JTAG pins can be enabled on Port C for In-System Programming (ISP).
Ports A and B can also be configured as a data port for a non-multiplexed bus or
multiplexed Address/Data buses for certain types of 16-bit microcontrollers.
5.5 Microcontroller Bus Interface
The PSD813F1 easily interfaces with most 8-bit microcontrollers that have either
multiplexed or non-multiplexed address/data busses. The device is configured to respond to
the microcontroller
s control signals, which are also used as inputs to the PLDs. Where
there is a requirement to use a 16-bit data bus to interface to a 16-bit microcontroller, two
PSDs must be used. Section 9.3.5 contains microcontroller interface examples.
5.6 JTAG Port
In-System Programming can be performed through the JTAG pins on Port C. This serial
interface allows complete programming of the entire PSD813F1 device. A blank device can
be completely programmed. The JTAG signals (TMS, TCK, TSTAT, TERR, TDI, TDO) can
be multiplexed with other functions on Port C. Table 3 indicates the JTAG signals pin
assignments.
Port C Pins
JTAG Signal
PC0
PC1
PC3
PC4
PC5
PC6
TMS
TCK
TSTAT
TERR
TDI
TDO
Table 3. JTAG Signals on Port C
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