19
MG12/4FX
LSI PIN DESCRIPTION
（LSI端子機能表）
Pin Pin
No. NAME I/O FUNCTION No. NAME I/O FUNCTION
1 VSS - VSS 65 VSS - VSS
2 TESTN I Input for TEST 66 IOVDD - IOVDD +3.3V
3 PLLBPN I PLL bypass select 67 LBN/LWRN/PF6 O External memory lower-byte enable
4 PLLVDD - PLLVDD +2.5V 68 UBN/UWRN/PF7 O External memory upper-byte enable
5 CIN - Capacitor terminal for PLL 69 RDN/PF4 O External memory read enable
6 PLLVSS - PLLVSS 70 MD00 I/O
7 TRSTN I 71 MD08 I/O
8 TMS I 72 MD01 I/O
9 TCK I
JTAG input
73 MD09 I/O External memory data bus
10 TDI I 74 MD02 I/O
11 TD0 O JTAG output 75 MD10 I/O
12 XI I Crystal oscillator 76 MD03 I/O
13 XO O Crystal oscillator 77 VSS - VSS
14 VSS - VSS 78 MD11 I/O
15 VDD - VDD +2.5V 79 MD04 I/O
16 ICN I Hardware reset 80 MD12 I/O
17 ECSN I CPU I/F chip select 81 MD05 I/O
18 EWRN/PD5 I CPU I/F write enable 82 MD13 I/O External memory data bus
19 ERDN/PD4 I CPU I/F read enable 83 MD06 I/O
20 EA3/PD3 I
CPU I/F address bus
84 MD14 I/O
21 EA2/PD2 I 85 MD07 I/O
22 EA1/PD1 I 86 MD15 I/O
23 EA0/PD0 I 87 WRN/PF5 O External memory write enable
24 IOVDD - IOVDD +3.3V 88 VSS - VSS
25 ED0/PC0 I/O
CPU I/F data bus
89 VDD - VDD +2.5V
26 ED1/PC1 I/O 90 IOVDD - IOVDD +3.3V
27 ED2/PC2 I/O 91 MA17 O
28 ED3/PC3 I/O 92 MA16 O
29 ED4/PC4 I/O 93 MA15 O
30 ED5/PC5 I/O 94 MA14 O
31 ED6/PC6 I/O 95 MA13 O
32 ED7/PC7 I/O 96 MA12 O
33 VSS - VSS 97 MA11 O External memory address bus
34 IRQ0N/PH0 I Interrupt input 98 MA10 O
35 TxD0 O Serial output 99 MA09 O
36 RxD0 I serial input 100 MA08 O
37 TxD1/PG2 O Serial output 101 MA07 O
38 RxD1/PH1 I serial input 102 MA06 O
39 SCLK1/PH2 I External synchronization clock 103 MA05 O
40 SD0 O Serial output 104 VSS - VSS
41 SDI/PH3 I serial input 105 MA04 O
42 BCLK O Bit clock output 106 MA03 O
External memory address bus
43 WCLK/SY0 O Word clock output 107 MA02 O
44 SYSCLK/PG3 O Clock output 108 MA01 O
45 VSS - VSS 109 CS0N/PG0 O External memory chip select
46 VDD - VDD +2.5V 110 MA18 O
47 IOVDD - IOVDD +3.3V 111 MA19 O
External memory address bus
External memory address bus
48 PA0 I/O
I/O port
112 MA21/PF1 O
49 PA1 I/O 113 MA22/PF2 O
50 PA2 I/O 114 MA20 O
51 PA3 I/O 115 MA23/PF3 O
52 PA4 I/O 116 CS1N/PG1 O External memory chip select
53 PA5 I/O 117 MA00/PF0 O
54 PA6 I/O 118 VSS - VSS
55 PA7 I/O 119 VDD - VDD +2.5V
56 VSS - VSS 120 IOVDD - IOVDD +3.3V
57 PB0 I/O
I/O port
121 CS2N/PE0 O
58 PB1 I/O 122 CS3N/PE1 O
59 PB2 I/O 123 CS4N/CASN/PE2 O
60 PB3 I/O 124 CS5N/PE3 O
61 PB4 I/O 125 CS50RDN/PE4 O
External memory chip select
62 PB5 I/O 126 CS51WRN/PE5 O
63 PB6 I/O 127 CS52WRN/PE6 O
64 PB7/SYI I/O 128
CS53WRN/RASN/PE7
O
YMW767-V (X3271A00) CPU
DSP: ICM07
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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