参数资料
型号: M37545G4-XXXGP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP32
封装: 7 X 7 MM, 0.80 MM PITCH, PLASTIC, LQFP-32
文件页数: 37/65页
文件大小: 782K
代理商: M37545G4-XXXGP
Rev.1.07
Mar 19, 2009
Page 40 of 60
REJ03B0140-0107
7545 Group
QzROM Writing Mode
In the QzROM writing mode, the user ROM area can be
rewritten while the microcomputer is mounted on-board by using
a serial programmer which is applicable for this microcomputer.
Table 10 lists the pin description (QzROM writing mode) and
Figure 44 and Figure 45 show the pin connections.
Refer to Figure 46 and Figure 47 for examples of a connection
with a serial programmer.
Contact the manufacturer of your serial programmer for serial
programmer. Refer to the user ’s manual of your serial
programmer for details on how to use it.
Table 10
Pin description (QzROM writing mode)
Pin
Name
I/O
Function
VCC, VSS, VDDR
Power source
Input
Apply 1.8 to 3.6 V to VCC, and 0 V to VSS and VDDR.
RESET
Reset input
Input
Reset input pin for active
L. Reset occurs when RESET pin is hold at
an
Llevel for 16 cycles or more of XIN.
XIN
Clock input
Input
Set the same termination as the single-chip mode.
XOUT
Clock output
Output
P00
P05
P21
P27
P30
P37
P42
I/O port
I/O
Input
Hor Llevel signal or leave the pin open.
CNVSS
VPP input
Input
QzROM programmable power source pin.
P07
ESDA input/output
I/O
Serial data I/O pin.
P20
ESCLK input
Input
Serial clock input pin.
P06
ESPGMB input
Input
Read/program pulse input pin.
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