參數(shù)資料
型號(hào)： ADSP-TS202SABPZ050
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 10/48頁(yè)
文件大?。?/td> 0K
描述： IC PROCESSOR 500MHZ 576BGA
標(biāo)準(zhǔn)包裝： 1
系列： TigerSHARC®
類型： 定點(diǎn)/浮點(diǎn)
接口： 主機(jī)接口，連接端口，多處理器
時(shí)鐘速率： 500MHz
非易失內(nèi)存： 外部
芯片上RAM： 1.5MB
電壓 - 輸入/輸出： 2.50V
電壓 - 核心： 1.05V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 576-BBGA 裸露焊盤
供應(yīng)商設(shè)備封裝： 576-BGA-ED（25x25）
包裝： 托盤
Rev. C
|
Page 18 of 48
|
December 2006
ADSP-TS202S
Table 12. Pin Definitions—Impedance Control, Drive Strength Control, and Regulator Enable
Signal
Type
Term
Description
CONTROLIMP0
CONTROLIMP1
I (pd)
I (pu)
na
Impedance Control. As shown in Table 13, the CONTROLIMP1–0 pins select between
normal driver mode and A/D driver mode. When using normal mode (recommended),
the output drive strength is set relative to maximum drive strength according to
Table 14. When using A/D mode, the resistance control operates in the analog mode,
where drive strength is continuously controlled to match a specific line impedance as
shown in Table 14.
DS2,
DS1
I (pu)
I (pd)
na
Digital Drive Strength Selection. Selected as shown in Table 14. For drive strength calcu-
lation, see Output Drive Currents on Page 36. The drive strength for some pins is preset,
not controlled by the DS2–0 pins. The pins that are always at drive strength 7 (100%)
include: CPA, DPA, TDO, EMU, and RST_OUT. The drive strength for the ACK pin is always
x2 drive strength 7 (100%).
ENEDREG
I (pu)
VSS
Connect the ENEDREG pin to VSS. Connect the VDD_DRAM pins to a properly decoupled
DRAM power supply.
I = input; A = asynchronous; O = output; OD = open-drain output; T = three-state; P = power supply; G = ground; pd = internal pull-down
5k
Ω; pu = internal pull-up 5 kΩ; pd_0 = internal pull-down 5 kΩ on DSP ID = 0; pu_0 = internal pull-up 5 kΩ on DSP ID = 0; pu_od_0 = internal
pull-up 500
Ω on DSP ID = 0; pd_m = internal pull-down 5 kΩ on DSP bus master; pu_m = internal pull-up 5 kΩ on DSP bus master; pu_ad
= internal pull-up 40 k
Ω. For more pull-down and pull-up information, see Electrical Characteristics on Page 22.
Term (termination of unused pins) column symbols: epd = external pull-down approximately 5 k
Ω to VSS; epu = external pull-up approx-
imately 5 k
Ω to VDD_IO, nc = not connected; na = not applicable (always used); VDD_IO = connect directly to VDD_IO; VSS = connect directly to VSS
Table 13. Impedance Control Selection
CONTROLIMP1-0
Driver Mode
00 (recommended)
Normal
01
Reserved
10 (default)
A/D Mode
11
Reserved
Table 14. Drive Strength/Output Impedance Selection
DS2–0
Pins
Drive
Strength1
Output
Impedance 2
000
Strength 0 (11.1%)
26
Ω
001
Strength 1 (23.8%)
32
Ω
010
Strength 2 (36.5%)
40
Ω
011
Strength 3 (49.2%)
50
Ω
100
Strength 4 (61.9%)
62
Ω
101 (default)
Strength 5 (74.6%)
70
Ω
110
Strength 6 (87.3%)
96
Ω
111
Strength 7 (100%)
120
Ω
1 CONTROLIMP1 = 0, A/D mode disabled.
2 CONTROLIMP1 = 1, A/D mode enabled.
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