參數(shù)資料
型號(hào)： M37549G1-XXXFP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO24
封裝： 5.30 X 10.10 MM, 0.80 MM PITCH, PLASTIC, SSOP-24
文件頁數(shù)： 52/86頁
文件大?。?/td> 1375K
代理商： M37549G1-XXXFP
Rev.2.02
Mar 31, 2009
Page 54 of 81
REJ03B0202-0202
7549 Group
QzROM Writing Mode
In the QzROM writing mode, the user ROM area can be written
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 69 shows the pin connections.
Refer to Figure 70 and Figure 71 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)
Fig 69. Pin connection diagram (M37549G3/G2/G1FP)
Pin
Name
I/O
Function
VCC, VSS
Power source
Input
Apply 2.7 to 5.5 V to VCC, and 0 V to VSS.
RESET
Reset input
Input
Reset input pin.
P21 /XIN
Clock input
Input
Set the same termination as the single-chip mode.
P20 /XOUT
Clock output
Output
P00
P05
P11
P17
P30, P31
I/O port
I/O
Input “H” or “L” level signal or leave the pin open.
CNVSS
VPP input
Input
QzROM programmable power source pin.
P10
ESDA I/O
I/O
Serial data I/O pin.
P06
ESCLK input
Input
Serial clock input pin.
P07
ESPGMB input
Input
Read/program pulse input pin.
Package type: PRSP0024GA-A (24P2Q-A)
12
11
10
9
8
13
7
14
6
15
5
16
4
17
3
18
2
19
1
20
21
22
23
24
M
3
7
549
G
3
/G
2/
G
1
FP
P30
P31
P13/AN3/KEY3/T2OUT
P12/AN2/KEY2/CMP2
P11/AN1/KEY1/CMP1
P10/AN0/KEY0/CMP0
P07(LED7)/SRDY
P06(LED6)/SCLK
RESET
P17/AN7/KEY7
P15/AN5/KEY5
P14/AN4/KEY4
P20/XOUT/XCOUT
VSS
VCC
P16/AN6/KEY6
P21/XIN/XCIN
CNVSS
P00(LED0)/INT0
P01(LED1)/INT1
P05(LED5)/TxD
P04(LED4)/RxD
P03(LED3)/CAP0
P02(LED2)
: Set the same termination as
the single-chip mode.
: QzROM pin
ESDA
ESPGMB
ESCLK
RESET
GND
VCC
VPP
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參數(shù)描述
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