XOCECO PH-42R6, Service Manual

Page: 34 / 42

1.0
CPU
203-L37R70-01DL
10: LOW(Use TCLK)
11: LOW (set all display out to ’0’)
12: LOW
13: LOW (disable serial interface debug)
14: LOW
15: LOW
16: HIGH(use crystal)
17: LOW (8bit bus with OCM access external ROM
18: HIGH
19: LOW
BOOTSTRAO HEADER
OPEN=1
SHUNTED=0
XOCECO
XIAMEN OVERSEAS CHINESE
ELECTRONIC CO., LTD.
TITLE:
DWG NO.
REV.
Sheet 6 of 7
Socket for a X8 Flash (64/128/256/512K)
and PROMJETmemory Emulater
Memory I/F
OCMADDR[16]
Custom1
Custom2
SerialInterfaceDebug1
SerialInterfaceDebug2
SerialInterfaceDebug3
OCMADDR[18]
OCMADDR[17]
OCMADDR[19]
OCMADDR[0-19]
OCMADDR[8]
OCMADDR[13]
OCMADDR[14]
OCMADDR[12]
OCMADDR[15]
OCMADDR[10]
OCMADDR[0-19]
OCMDATA[0-7]
OCMADDR[18]
OCMADDR[17]
OCMADDR[16]
OCMADDR[15]
OCMADDR[14]
OCMADDR[13]
OCMADDR[12]
OCMADDR[10]
OCMADDR[9]
OCMADDR[8]
OCMADDR[7]
OCMADDR[6]
OCMADDR[5]
OCMADDR[4]
OCMADDR[3]
OCMADDR[2]
OCMADDR[1]
OCMADDR[0]
OCMDATA[7]
OCMDATA[6]
OCMDATA[5]
OCMDATA[4]
OCMDATA[3]
OCMDATA[2]
OCMDATA[1]
OCMDATA[0]
OCMADDR[9]
OCMADDR[11]
OCMADDR[11]
R163
10K
R164
10K
R159
10K
R160
10K
R165
0
R166
0
R167 0
R168 0
R169 0
R170
0
R161
10K
R162
10K
/ROM_CS
/OCM_RE
/OCM_WE
OCMADDR[0-19]
OCMDATA[0-7]
C233
100n C232 22uF
10V
N17
MX29LV040-PLCC
22
CE
1
A18
11
A1
31
WE
3
A15
8
A4
6
A6
30
A17
23
A10
29
A14
7
A5
5
A7
26
A9
9
A3
24
OE
10
A2
25
A11
4
A12
27
A8
32
VCC
2
A16
28
A13
12
A0
21
Q7
13
Q0
14
Q1
19
Q5
20
Q6
15
Q2
18
Q4
16
GND
17
Q3
+3.3V_DIG
+3.3V_DIG
+3.3V_DIG
INT_OSC
8-BIT_FLASH
8-BIT_FLASH1
8-BIT_FLASH3
5
5
5
5
5