參數(shù)資料
型號: IDT82V2042EPFG8
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 33/83頁
文件大小: 0K
描述: IC LIU T1/J1/E1 2CH SHORT 80TQFP
標(biāo)準(zhǔn)包裝: 750
類型: 線路接口裝置(LIU)
規(guī)程: E1
電源電壓: 3.13 V ~ 3.47 V
安裝類型: 表面貼裝
封裝/外殼: 80-LQFP
供應(yīng)商設(shè)備封裝: 80-TQFP(14x14)
包裝: 帶卷 (TR)
其它名稱: 82V2042EPFG8
IDT82V2042E
DUAL CHANNEL T1/E1/J1 SHORT HAUL LINE INTERFACE UNIT
FUNCTIONAL DESCRIPTION
39
December 12, 2005
3.12 MICROCONTROLLER INTERFACES
The microcontroller interface provides access to read and write the reg-
isters in the device. The chip supports serial microcontroller interface and
two kinds of parallel microcontroller interface: Motorola non-Multiplexed
mode and Intel non-Multiplexed mode. Different microcontroller interfaces
can be selected by setting MODE[1:0] pins to different values. Refer to
MODE1 and MODE0 in pin description and 8 MICROCONTROLLER
3.12.1 PARALLEL MICROCONTROLLER INTERFACE
The interface is compatible with Motorola or Intel microcontroller. When
MODE[1:0]pinsaresetto‘10’,Parallel-non-Multiplexed-Motorolainterface
isselected.When MODE[1:0]pinsareset to‘11’, Parallel-non-Multiplexed-
Intel Interface is selected. Refer to 8 MICROCONTROLLER INTERFACE
3.12.2 SERIAL MICROCONTROLLER INTERFACE
When MODE[1:0] pins are set to ‘01’, Serial Interface is selected. In this
mode, the registers are programmed through a 16-bit word which contains
an 8-bit address/command byte (6 address bits A0~A5 and bit R/W) and
an 8-bit data byte (D0~D7). When bit R/W is ‘1’, data is read out from pin
SDO. When bit R/W is ‘0’, data is written into SDI pin. Refer to Figure-20.
Figure-20 Serial Microcontroller Interface Function Timing
R/W
A0
A1
A2
A3
A4
A5
-
D1
D2
D3
D4
D5
D6
D7
CS
SCLK
SDI
address/command byte
input data byte (R/W=0)
D0
D1
D2
D3
D4
D5
D6
D7
remains high impedance
SDO
output data byte (R/W=1)
D0
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