65
STR-DG910
• IC Pin Descriptions
IC1009 ADSP21266SKSTZ-2C (DSP EX3) (DIGITAL BOARD (3/5))
Pin No. Pin Name I/O Pin Description
1 VDDINT — Power supply terminal (+1.2 V)
2 CLKCFG0 I Clock frequency setting signal input 0
3 CLKCFG1 I Clock frequency setting signal input 1
4 BOOTCFG0 I Boot mode setting signal input 0 from DSP.
5 BOOTCFG1 I Boot mode setting signal input 1 from DSP.
6 GND — Ground
7 VDDEXT — Power supply terminal (+3.3 V)
8 GND — Ground
9 VDDINT — Power supply terminal (+1.2 V)
10 GND — Ground
11 VDDINT — Power supply terminal (+1.2 V)
12 GND — Ground
13 VDDINT — Power supply terminal (+1.2 V)
14 GND — Ground
15 INT_REQ O Interrupt status output for main system controller.
16 DIR_ERR O PLL lock error signal and data error flag output for main system controller.
17 AD7 I/O Two-way data bus and address signal output 7 with S-RAM. (Not used in this set)
18 GND — Ground
19 VDDINT — Power supply terminal (+1.2 V)
20 GND — Ground
21 VDDEXT — Power supply terminal (+3.3 V)
22 GND — Ground
23 VDDINT — Power supply terminal (+1.2 V)
24 to 26 AD6 to AD4 I/O Two-way data bus and address signal output 6 to 4 with S-RAM. (Not used in this set)
27 VDDINT — Power supply terminal (+1.2 V)
28 GND — Ground
29, 30 AD3, AD2 I/O Two-way data bus and address signal output 3, 2 with S-RAM. (Not used in this set)
31 VDDEXT — Power supply terminal (+3.3 V)
32 GND — Ground
33, 34 AD1, AD0 I/O Two-way data bus and address signal output 1, 0 with S-RAM. (Not used in this set)
35 XWR O Data write enable signal output for S-RAM. (L: active) (Not used in this set)
36, 37 VDDINT — Power supply terminal (+1.2 V)
38 GND — Ground
39 XRD O Read strobe signal output for S-RAM. (L: active) (Not used in this set)
40 ALE O Address latch enable signal output (Not used in this set)
41 to 43 AD15 to AD13 I/O
Two-way data bus and address signal output 15 to 13 with S-RAM.
(Not used in this set)
44 GND — Ground
45 VDDEXT — Power supply terminal (+3.3 V)
46 AD12 I/O Two-way data bus and address signal output 12 with S-RAM. (Not used in this set)
47 VDDINT — Power supply terminal (+1.2 V)
48 GND — Ground
49 to 52 AD11 to AD8 I/O
Two-way data bus and address signal output 11 to 8 with S-RAM.
(Not used in this set)
53 A16 O Address signal output 16 for S-RAM. (Not used in this set)
54 VDDINT — Power supply terminal (+1.2 V)
55 GND — Ground
56, 57 A17, A18 O Address signal output 17, 18 for S-RAM. (Not used in this set)
58 GND — Ground
59 VDDEXT — Power supply terminal (+3.3 V)
60 VDDINT — Power supply terminal (+1.2 V)
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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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