Rom - Brother HL-2030 Service Manual

1.3.5

ROM

A 32Mbit ROM (x 16bit) is fitted.
< HL-2030/2040 >
FLASH PIN
@R90
1k
RSTN
2A/2-1B/2-4E
PIN 64M 32M 16M 8M
9 A19 A19 A19 NC
13 A21 NC NC NC
14 WP/ACC NC NC
WP/ACC
15 RY/BY RY/BY RY/BY RY/BY
47 Byte Byte Byte Byte
ADR[22-1]
4B/6A/6B
DATA[15-0]
Fig. 3-10
FLASH MEMORY
U9
26
CE
ROMCSN0
4B
28
IORDN OE
4B
11
IOWEN WE
4B
47
VDD3 BYTE
TP126
12
RESET
C82
C101
14
WR/ACC/NC
VDD3
0V
25
ADR[1]
A0
24
ADR[2]
A1
23
ADR[3]
A2
22
ADR[4]
A3
21
ADR[5]
A4
20
ADR[6]
A5
19
ADR[7]
A6
ADR[8] 18
A7
8
ADR[9]
A8
7
ADR[10]
A9
6
ADR[11]
A10
5
ADR[12]
A11
4
ADR[13]
A12
3
ADR[14]
A13
2
ADR[15]
A14
1
ADR[16]
A15 DQ15/A-1
48
ADR[17]
A16
17
ADR[18]
A17
16
ADR[19]
A18
9
ADR[20]
A19
10
ADR[21]
A20/NC
13
ADR[22]
A21/NC
MBM29PL64LM-90TN/10T
3B
3-9
HL-2030/2040/2070N SERVICE MANUAL
37
VCC
VDD3
C84
27
C103
VSS27
46
0V
VSS46
15
TP130
RY/BY
29
DATA[0]
DQ0
31
DATA[1]
DQ1
33
DATA[2]
DQ2
35
DATA[3]
DQ3
38
DATA[4]
DQ4
40
DATA[5]
DQ5
42
DATA[6]
DQ6
44
DATA[7]
DQ7
30
DATA[8]
DQ8
32
DATA[9]
DQ9
34
DATA[10]
DQ10
36
DATA[11]
DQ11
39
DATA[12]
DQ12
41
DATA[13]
DQ13
43
DATA[14]
DQ14
45
DATA[15]
Confidential