參數(shù)資料
型號: M37544G2SP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP32
封裝: 0.400 INCH, 1.78 MM PITCH, PLASTIC, SDIP-32
文件頁數(shù): 42/70頁
文件大?。?/td> 645K
代理商: M37544G2SP
7544 Group
Rev.1.04
2004.06.08
page 45 of 66
REJ03B0012-0104Z
PROM Mode
M37544G2SP/GP (referred to as “the MCU”) has a PROM Mode
as well as the normal operation mode. PROM Mode enables an
external device (referred to as “Programmer”) to read and pro-
gram the built-in EPROM via a minimum number of serial I/O pins
by sending commands to control the MCU.
To enable PROM Mode, use the pin connection shown in Figure
60 to 61 and apply power (VCC). Then execute the new OTP en-
try operation, called “Mad Dog Entry”.
There are three operation modes in PROM Mode : Read, Program
and Program-Verify. Three commands are defined to enable each
mode respectively.
The format of the serial I/O is : clock synchronous and LSB-data-
first.
P12/SCLK
M37544G2SP
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
P13/SRDY
P14/CNTR0
P20/AN0
P21/AN1
P22/AN2
P23/AN3
P24/AN4
P25/AN5
VREF
CNVSS
VCC
XIN
XOUT
VSS
RESET
P11/TXD
P10/RXD
P07(LED7)
P06(LED6)
P05(LED5)
P04(LED4)
P03(LED3)/TXOUT
P02(LED2)
P01(LED1)
P00(LED0)/CNTR1
P34(LED12)/INT1
P33(LED11)
P32(LED10)
P31(LED9)
P30(LED8)
P37(LED13)/INT0
ESCLK
RESETB
VPP
VCC
XIN
XOUT
VSS
ESDA
ESPGMB
Fig. 60 “Mad Dog Entry” Pin Diagram (32P4B)
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