參數(shù)資料
型號(hào): ADSP-21160MKBZ-80
廠商: Analog Devices Inc
文件頁數(shù): 3/52頁
文件大?。?/td> 0K
描述: IC DSP CONTROLLER 32BIT 400 BGA
產(chǎn)品培訓(xùn)模塊: SHARC Processor Overview
標(biāo)準(zhǔn)包裝: 1
系列: SHARC®
類型: 浮點(diǎn)
接口: 主機(jī)接口,連接端口,串行端口
時(shí)鐘速率: 80MHz
非易失內(nèi)存: 外部
芯片上RAM: 512kB
電壓 - 輸入/輸出: 3.30V
電壓 - 核心: 2.50V
工作溫度: 0°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 400-BBGA
供應(yīng)商設(shè)備封裝: 400-PBGA(27x27)
包裝: 托盤
–11–
REV. 0
ADSP-21160M
DMAG2
O/T
DMA Grant 2 (DMA Channel 12). Asserted by ADSP-21160M to indicate that the
requested DMA starts on the next cycle. Driven by bus master only.
BR6–1
I/O/S
Multiprocessing Bus Requests. Used by multiprocessing ADSP-21160Ms to arbitrate
for bus mastership. An ADSP-21160M only drives its own BRx line (corresponding to
the value of its ID2–0 inputs) and monitors all others. In a multiprocessor system with
less than six ADSP-21160Ms, the unused BRx pins should be pulled high; the
processor’s own BRx line must not be pulled high or low because it is an output.
RPBA
I/S
Rotating Priority Bus Arbitration Select. When RPBA is high, rotating priority for
multiprocessor bus arbitration is selected. When RPBA is low, fixed priority is selected.
This signal is a system configuration selection which must be set to the same value on
every ADSP-21160M. If the value of RPBA is changed during system operation, it must
be changed in the same CLKIN cycle on every ADSP-21160M.
PA
I/O/T
Priority Access. Asserting its PA pin allows an ADSP-21160M bus slave to interrupt
background DMA transfers and gain access to the external bus. PA is connected to all
ADSP-21160Ms in the system. If access priority is not required in a system, the PA pin
should be left unconnected.
DTx
O
Data Transmit (Serial Ports 0, 1). Each DT pin has a 50 k
internal pull-up resistor.
DRx
I
Data Receive (Serial Ports 0, 1). Each DR pin has a 50 k
internal pull-up resistor.
TCLKx
I/O
Transmit Clock (Serial Ports 0, 1). Each TCLK pin has a 50 k
internal
pull-up resistor.
RCLKx
I/O
Receive Clock (Serial Ports 0, 1). Each RCLK pin has a 50 k
internal pull-up resistor.
TFSx
I/O
Transmit Frame Sync (Serial Ports 0, 1).
RFSx
I/O
Receive Frame Sync (Serial Ports 0, 1).
LxDAT7–0
I/O
Link Port Data (Link Ports 0–5). Each LxDAT pin has a 50 k
internal pull-down
resistor that is enabled or disabled by the LPDRD bit of the LCTL0–1 register.
LxCLK
I/O
Link Port Clock (Link Ports 0–5). Each LxCLK pin has a 50 k
internal pull-down
resistor that is enabled or disabled by the LPDRD bit of the LCTL0–1register.
LxACK
I/O
Link Port Acknowledge (Link Ports 0–5). Each LxACK pin has a 50 k
internal
pull-down resistor that is enabled or disabled by the LPDRD bit of the LCOM register.
EBOOT
I
EPROM Boot Select. For a description of how this pin operates, see Table 3. This
signal is a system configuration selection that should be hardwired.
LBOOT
I
Link Boot. For a description of how this pin operates, see Table 3. This signal is a
system configuration selection that should be hardwired.
BMS
I/O/T
Boot Memory Select. Serves as an output or input as selected with the EBOOT and
LBOOT pins; see Table 3. This input is a system configuration selection that should
be hardwired.
CLKIN
I
Local Clock In. CLKIN is the ADSP-21160M clock input. The ADSP-21160M
external port cycles at the frequency of CLKIN. The instruction cycle rate is a multiple
of the CLKIN frequency; it is programmable at power-up. CLKIN may not be halted,
changed, or operated below the specified frequency.
CLK_CFG3–0
I
Core/CLKIN Ratio Control. ADSP-21160M core clock (instruction cycle) rate is equal
to n
CLKIN where n is user-selectable to 2, 3, or 4, using the CLK_CFG3–0 inputs.
For clock configuration definitions, see the RESET & CLKIN section of the System
Design chapter of the ADSP-21160 SHARC DSP Hardware Reference manual.
CLKOUT
O/T
Local Clock Out. CLKOUT is driven at the CLKIN frequency by the current bus
master. This output is three-stated when the ADSP-21160M is not the bus master, or
when the host controls the bus (HBG asserted). A keeper latch on the DSP’s CLKOUT
pin maintains the output at the level it was last driven (only enabled on the
ADSP-21160M with ID2–0 = 00x).
RESET
I/A
Processor Reset. Resets the ADSP-21160M to a known state and begins execution at
the program memory location specified by the hardware reset vector address. The
RESET input must be asserted (low) at power-up.
Table 2. Pin Function Descriptions (Continued)
Pin
Type
Function
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