参数资料
型号: PSD4235F2-90B81
厂商: 意法半导体
英文描述: Flash In-System-Programmable Peripherals for 16-Bit MCUs
中文描述: Flash在系统可编程外设的16位微控制器
文件页数: 64/93页
文件大小: 503K
代理商: PSD4235F2-90B81
9.5.3.4 Reset of Flash Erase and Programming Cycles
An external reset on the RESET pin will also reset the internal Flash memory state
machine. When the Flash is in programming or erase mode, the RESET pin will terminate
the programming or erase operation and return the Flash back to read mode in tNLNH-A
(minimum 25 μs) time.
9.6 Programming In-Circuit using the JTAG-ISP Interface
The JTAG-ISP interface on the PSD4000 can be enabled on Port E (see Table 29). All
memory (Flash and Flash Boot Block), PLD logic, and PSD configuration bits may be
programmed through the JTAG-ISC interface. A blank part can be mounted on a printed
circuit board and programmed using JTAG-ISP.
The standard JTAG signals (IEEE 1149.1) are TMS, TCK, TDI, and TDO. Two additional
signals, TSTAT and TERR, are optional JTAG extensions used to speed up program and
erase operations.
Preliminary Information
PSD4000 Series
61
Port E Pin
PE0
PE1
PE2
PE3
PE4
PE5
JTAG Signals
TMS
TCK
TDI
TDO
TSTAT
TERR
Description
Mode Select
Clock
Serial Data In
Serial Data Out
Status
Error Flag
Table 29. JTAG Port Signals
The
PSD4000
Functional
Blocks
(cont.)
*
SR_cod bit in the VM Register are always cleared to zero on power on or warm reset.
Port Configuration
MCU I/O
PLD Output
Power On Reset
Input Mode
Valid after internal
PSD configuration
bits are loaded
Tri-stated
Tri-stated
Warm Reset
Input Mode
Valid
Power Down Mode
Unchanged
Depend on inputs to
PLD (address are
blocked in PD mode)
Not defined
Tri-stated
Address Out
Data Port
Tri-stated
Tri-stated
Table 28. Status During Power On Reset, Warm Reset and Power Down Mode
Register
Power On Reset
Cleared to
0
Initialized based on
the selection in
PSDsoft
Configuration Menu.
Cleared to
0
Warm Reset
Unchanged
Initialized based on
the selection in
PSDsoft
Configuration Menu.
Cleared to
0
Power Down Mode
Unchanged
Unchanged
PMMR0, 2
VM Register*
All other registers
Unchanged
By default, on a blank PSD (as shipped from factory or after erasure), four pins on Port E
are enabled for the basic JTAG signals TMS, TCK, TDI, and TDO.
See Application Note 54 for more details on JTAG In-System-Programming.
相关PDF资料
PDF描述
PSD4235F2-90B81I Flash In-System-Programmable Peripherals for 16-Bit MCUs
PSD4235F2-90J Flash In-System-Programmable Peripherals for 16-Bit MCUs
PSD4235F2-90JI Flash In-System-Programmable Peripherals for 16-Bit MCUs
PSD4235F2-90M Flash In-System-Programmable Peripherals for 16-Bit MCUs
PSD4235F2-90MI Flash In-System-Programmable Peripherals for 16-Bit MCUs
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