DS21Q44 Просмотр технического описания (PDF) - Dallas Semiconductor -> Maxim Integrated

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Компоненты Описание

производитель

DS21Q44

Enhanced QUAD E1 FRAMER

Dallas Semiconductor -> Maxim Integrated 

DS21Q44

PIN

SYMBOL

TYPE DESCRIPTION

119

D2 or AD2

120

D3 or AD3

121

D4 or AD4

122

D5 or AD5

123

D6 or AD6

124

D7 or AD7

125

TSYSCLK0

126

TSER0

127

TSSYNC0

128

TSIG0

[TCHCLK0]

I/O Data Bus Bit or Address/Data Bit 2

I/O Data Bus Bit or Address/Data Bit 3

I/O Data Bus Bit or Address/Data Bit 4

I/O Data Bus Bit or Address/Data Bit 5

I/O Data Bus Bit or Address/Data Bit 6

I/O Data Bus Bit or Address/Data Bit 7; MSB

I Transmit System Clock for Elastic Store in Framer 0

I Transmit Serial Data for Framer 0

I Transmit Sync for Elastic Store in Framer 0

I Transmit Signaling Input for Framer 0

[O] [Transmit Channel Clock from Framer 0]

Note:

1. Brackets [ ] indicate pin function when the DS21Q44 is configured for emulation of the DS21Q43,

(FMS = 1).

Pin Description Sorted by Pin Function, FMS = 0 Table 2-2

PIN

SYMBOL

TYPE

DESCRIPTION

108

8MCLK

23

A0

24

A1

25

A2

26

A3

27

A4

28

A5

29

A6/ALE (AS)

46

A7

61

BTS

112

CLKSI

60

CS*

117

D0 or AD0

118

D1 or AD1

119

D2 or AD2

120

D3 or AD3

121

D4 or AD4

122

D5 or AD5

123

D6 or AD6

124

D7 or AD7

47

FMS

58

FS0

59

FS1

30

INT*

52

JTCLK

O 8 MHz Clock

I Address Bus Bit 0; LSB

I Address Bus Bit 1

I Address Bus Bit 2

I Address Bus Bit 3

I Address Bus Bit 4

I Address Bus Bit 5

I Address Bus Bit 6; MSB or Address Latch Enable (Address

Strobe)

I Address Bus Bit 7

I Bus Type Select for Parallel Control Port

I 8MCLK Clock Reference Input

I Chip Select

I/O Data Bus Bit or Address/Data Bit 0; LSB

I/O Data Bus Bit or Address/Data Bit 1

I/O Data Bus Bit or Address/Data Bit 2

I/O Data Bus Bit or Address/Data Bit 3

I/O Data Bus Bit or Address/Data Bit 4

I/O Data Bus Bit or Address/Data Bit 5

I/O Data Bus Bit or Address/Data Bit 6

I/O Data Bus Bit or Address/Data Bit 7; MSB

I Framer Mode Select

I Framer Select 0 for Parallel Control Port

I Framer Select 1 for Parallel Control Port

O Receive Alarm Interrupt for all Four Framers

I JTAG Test Clock

10 of 105

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