參數(shù)資料
型號: PSD4235G1-12J
廠商: 意法半導(dǎo)體
英文描述: Flash In-System-Programmable Peripherals for 16-Bit MCUs
中文描述: Flash在系統(tǒng)可編程外設(shè)的16位微控制器
文件頁數(shù): 47/89頁
文件大?。?/td> 703K
代理商: PSD4235G1-12J
47/89
PSD4235G2
Figure 25. Interfacing the PSD with an MMC2001
MMC2001.
The Motorola MCORE MMC2001
MCU has a MOD input pin that selects interal or
external boot ROM. The PSD can be configured
as the external flash boot ROM or as extension to
the internal ROM.
The MMC2001 has a 16-bit external data bus and
20 address lines with external chip select signals.
The Chip Select Control Registers allow the user
to customize the bus interface and timing to fit the
individual system requirement. A typical interface
configuaration to the PSD is shown in Figure 25.
The MMC2001’s R/W signal is conneced to the
CNTL0 pin, while EB0 and EB1 (enable byte-0 and
enable byte-1) are connected to the CNTL1 (UDS)
and CNTL2 (LDS) pins. The WEN bit in the Chip
Select Control Register should be set to 1 to termi-
nate the EB0-EB1 earlier to provide the wrtie data
hold time for the PSD. The WSC and WWS bits in
the Control Register are set to wait states that
meet the PSD access time requirement.
VCC_BAR
VCC_BAR
A16
A18
ALE
AD14
AD15
AD10
AD6
AD7
RD\
AD13
AD9
AD1
AD2
RESET\
A19
BHE\
A[19:16]
A17
A19
AD[15:0]
AD12
AD3
WR\
AD8
A16
RESET\
AD0
U3
CRYSTAL
PSD
ADIO0
ADIO2
ADIO3
ADIO4
ADIO5
ADIO6
3
4
5
6
7
10
11
12
ADIO9
ADIO10
ADIO11
ADIO12
ADIO15
14
15
16
17
18
19
20
PF0
PF2
PF3
PF4
PF5
PF6
31
32
33
34
35
36
37
38
PG1
PG2
PG3
PG4
PG7
22
23
24
25
26
27
28
PA5
PA6
PA7
56
57
58
CNTL0(WR)
CNTL1(RD)
59
60
CNTL2(BHE)
40
PD0 (ALE)
79
80
RESET
39
ADIO8
13
PG0
21
PA3
54
55
PA2
53
PA0
PA1
51
52
PB0
PB3
PB4
PB5
PB6
PB7
61
62
63
64
65
66
67
68
PC0
PC1
PC2
PC3
PC4
PC5
41
42
43
44
45
46
47
48
PE0 (TMS)
PE1 (TCK/ST)
PE2 (TDI)
PE3 (TDO)
PE4 (TSTAT/RDY)
71
72
73
74
75
76
77
PE5 (TERR)
78
V
2
V
6
V
9
G
5
G
4
G
3
G
8
G
7
PD2 (CSI)
PD3 (WRH)
1
2
Infineon C167CR
AD0
AD2
AD3
AD4
AD5
AD6
100
101
102
103
106
107
V
1
AD8
AD9
AD10
AD11
AD12
AD15
108
111
114
115
116
117
EA
99
98
READY
97
WR/WRL
96
95
79
V
9
XTAL1
138
XTAL2
137
RSTIN
RSTOUT
NMI
A
140
142
P4.0/A16
85
86
87
88
89
90
91
92
A17
A18
A21
A22
P4.7/A23
P3.0/T0IN
P3.2/CAPIN
P3.3/T3OUT
P3.4/T3EUD
P3.5/T4IN
P3.6/T3IN
P3.9/MTSR
P3.10/TXD0
P3.11/RXD0
65
66
67
68
69
70
73
74
75
76
77
78
P3.12/BHE/WRD
P3.13/SCLK
80
81
P1L0
118
P1L1
P1L2
P1L3
119
P1L4
122
123
124
P1L5
125
P1H0
P1H1
P1H2
128
P1H3
131
132
133
P1H4
134
P1H7
135
P2.0/CC0IO
P2.1/CC1IO
P2.2/CC2IO
P2.3/CC3IO
P2.4/CC4IO
P2.5/CC5IO
47
48
49
50
51
52
53
54
57
58
59
60
61
62
63
64
P2.8/CC8IO/EX0IN
P2.9/CC9IO/EX1IN
P2.10/CC10IO/EX2IN
P2.11/CC11IO/EX3IN
P2.12/CC12IO/EX4IN
P2.15/CC15IO/EX7IN
P5.0/AN0
P5.1/AN1
P5.2/AN2
P5.3/AN3
P5.4/AN4
P5.7/AN7
P5.8/AN8
P5.9/AN9
P5.10/AN10/T6UED
P5.11/AN11/T5UED
P5.14/AN14/T4UED
P5.15/AN15/T2UED
27
28
29
30
31
32
33
34
35
36
39
40
41
42
43
44
P6.0/!CS0
P6.1/!CS1
P6.4/!CS4
P6.5/!HOLD
P6.6/!HLDA
P6.7/!BREQ
1
2
3
4
5
6
7
8
P7.0/POUT0
P7.2/POUT2
P7.3/POUT3
P7.4/CC28IO
P7.5/CC29IO
P7.6/CC30IO
19
20
21
22
23
24
25
26
P8.0/CC16IO
P8.1/CC17IO
P8.2/CC18IO
P8.3/CC19IO
P8.4/CC20IO
P8.7/CC23IO
9
10
11
12
13
14
15
16
V
1
V
1
V
1
V
1
V
9
V
8
V
7
V
5
V
4
V
1
3
V
1
V
1
V
1
V
8
V
7
V
1
V
5
V
4
Vref
37
ADIO[15:0]
A[19:16]
AI04954b
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