KX-NCP1104XJ (serv.man2) - Panasonic PBX Service Manual (repair manual). Page 41

41

229

10

N2

TDM2_DR

GPIO9

I/O

Ih/Ot16 TDM2_DR: TDM Bus 2 Receive Data Input. Receive data input.

A-Law/

µ-Law PCM receive data sample from the T1/E1 Trans-

ceiver.
GPIO9: General Purpose I/O 9. Connect to pull-up if not used.

230

11

N3

TDM2_DX

Reserved

I/O

I/
Opsts66

TDM2_DX: TDM Bus 2 Transmit Data Output. Tx data output. A-
Law/

µ-Law PCM transmit data sample to the T1/E1 Transceiver.

Three-states when not shifting. TDM_DX requires a 33

Ω series

resistor, to avoid problems caused by one driver turning off, while
another driver is turning on.
Reserved

231

12

M4

TDM2_FS

GPIO10

I/O

Ih/Ot16 TDM2_FS: TDM Bus 2 Frame Sync. 8 kHz frame sync input from

the T1/E1 Transceiver. Each TDM bus can be connected to a dif-
ferent Frame Sync and Shift CLK.
GPIO10: General Purpose I/O 10. Internal pull-up. Leave open if
not used.

232

13

M1

TDM3_CK

GPIO11

I/O

Ih/Ot16 TDM3_CK: TDM Bus 3 Data Shift Clock. Shift clock input (1.544

MHz - 32.768 MHz) input from the T1/E1 Transceiver. Each TDM
bus can be connected to a different Frame Sync and Shift CLK.
GPIO11: General Purpose I/O 11. Internal pull-up. Leave open if
not used.

233

14

M2

TDM3_DR

PCI_REQ5#

I/O

Iu/Ots8 TDM3_DR: TDM Bus 3 Receive Data Input. Receive data input.

A-Law/

µ-Law PCM receive data sample from the T1/E1 Trans-

ceiver.
PCI_REQ5#: Request. REQ# is used to indicate to the arbiter that
this agent desires use of the bus. Connect to PCI Bus: REQ#.

234

15

M3

TDM3_DX

Reserved

I/O

I/
Opsts66

TDM3_DX: TDM Bus 3 Transmit Data Output. Tx data output. A-
Law/

µ-Law PCM transmit data sample to the T1/E1 Transceiver.

Three-states when not shifting. TDM_DX requires a 33

Ω series

resistor, to avoid problems caused by one driver turning off, while
another driver is turning on.
Reserved

235

16

L4

TDM3_FS

PCI_GNT5#

I/O

Iu/Ots8 TDM3_FS: TDM Bus 3 Frame Sync. 8kHz frame sync input from

the T1/E1 Transceiver. Each TDM bus can be connected to a dif-
ferent Frame Sync and Shift CLK.
PCI_GNT5#: Grant. GNT# is used to indicate to the agent that
access to the bus has been granted. Connect to PCI Bus: GNT#.

Total 

Signals

Interface 

Signals

Pin

UART & Extra GPIO Interface Signal 

Name

Signal 

Type

I/O Type

Signal Description

Pin Compatible & 

Enhanced Feature 

Modes

Software Selected 

Features

236

1

E2

UART0_RX

GPIO16

I/O

Ihu/Ot16 UART0_RX: UART Receive Data. Internal pull-up. Useful

software debug port. Recommend connection to a test point
for debug.
GPIO16: General Purpose I/O 16. Internal pull-up. Leave
open if not used.

237

2

E4

UART0_TX

GPIO17

I/O

Ihu/Ot16 UART0_TX: UART Transmit Data. Useful software debug

port. Recommend connection to a test point for debug.
GPIO17: General Purpose I/O 17. Internal pull-up. Leave
open if not used.

238

3

Y2

Reserved

UART1_RX

I

Id

Reserved. Internal pull-down. Leave open.
UART1_RX: UART Receive Data. Internal pull-up. Useful
software debug port. Recommend connection to a test point
for debug.

239

4

AA1

Reserved

UART1_TX

O

Id/Ot8

Reserved: Internal pull-down. Leave open.
UART1_TX: UART Transmit Data. Useful software debug
port. Recommend connection to a test point for debug.

Total 

Signals

Interface 

Signals

Pin

TDM Bus & Extra GPIO Interface 

Signal Name

Signal 

Type

I/O Type

Signal Description

Pin Compatible 

& Enhanced 

Feature Mode

S/W Selected 

Features