IDT82V2052E 查看數據表（PDF） - Integrated Device Technology

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IDT82V2052E

DUAL CHANNEL E1 SHORT HAUL LINE INTERFACE UNIT

Integrated Device Technology 

IDT82V2052E

DUAL CHANNEL E1 SHORT HAUL LINE INTERFACE UNIT

Table-1 Pin Description (Continued)

Name

Type

MODE1

I

MODE0

Pin No.

9

10

Description

MODE[1:0]: operation mode of control interface select

The level on this pin determines which control mode is used to control the device as follows:

RCLKE

I

RXTXM1

I

RXTXM0

CS

I

LP11

INT

O

LP10

I

MODE[1:0]

00

01

10

11

Control Interface mode

Hardware interface

Serial Microcontroller Interface

Motorola non-multiplexed

Intel non-multiplexed

• The serial microcontroller interface consists of CS, SCLK, SCLKE, SDI, SDO and INT pins. SCLKE is used for the

selection of the active edge of SCLK.

• The parallel non-multiplexed microcontroller interface consists of CS, A[5:0], D[7:0], DS/RD, R/W/WR and INT pins.

(Refer to 3.11 MICROCONTROLLER INTERFACES for details)

• Hardware interface consists of PULSn, THZ, RCLKE, LPn[1:0], PATTn[1:0], JA[1:0], MONTn, TERMn, RPDn,

MODE[1:0] and RXTXM[1:0] (n=1, 2).

11 RCLKE: the active edge of RCLKn select

In hardware control mode, this pin selects the active edge of RCLKn

• L= update RDPn/RDNn on the rising edge of RCLKn

• H= update RDPn/RDNn on the falling edge of RCLKn

In software control mode, this pin should be connected to GNDIO.

14 RXTXM[1:0]: Receive and transmit path operation mode select

15 In hardware control mode, these pins are used to select the single rail or dual rail operation modes as well as AMI or HDB3

line coding:

• 00= single rail with HDB3 coding

• 01= single rail with AMI coding

• 10= dual rail interface with CDR enabled

• 11= slicer mode (dual rail interface with CDR disabled)

In software control mode, these pins should be connected to ground.

42 CS: Chip Select

In serial or parallel microcontroller interface mode, this is the active low enable signal. A low level on this pin enables serial

or parallel microcontroller interface.

LP11/LP10: Loopback mode select for channel 1

When the chip is configured by hardware, this pin is used to select loopback operation modes for channel 1.:

• 00 = no loopback

• 01 = analog loopback

• 10 = digital loopback

• 11 = remote loopback

41 INT: Interrupt Request

In software control mode, this pin outputs the general interrupt request for all interrupt sources. If INTM_GLB bit (GCF, 20H)

is set to ‘1’, all the interrupt sources will be masked. These interrupt sources can be masked individually via registers (INTM0,

13H...) and (INTM1, 14H...). The interrupt status is reported via the registers (INTCH, 21H), (INTS0, 18H...) and (INTS1,

19H...).

Output characteristics of this pin can be defined to be push-pull (active high or active low) or open-drain (active low) by setting

bits INT_PIN[1:0] (GCF, 20H)

LP11/LP10: Loopback mode select for channel 1

See above LP11.

PIN DESCRIPTION

11

December 12, 2005

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