Card Type	Telephony
Chip Set	TI TMS320C51
I/O options	MVIP bus, serial port
Processor	80386SX
Processor Speed	16/25MHz
Maximum Onboard Memory	512KB DRAM/256KB SRAM
Data Bus	16-bit ISA

CONNECTIONS
Function	Label	Function	Label
RS-232 port (see pinout below)	E43	Lines 3 & 4	CN2
MVIP bus	JP5	Lines 5 & 6	CN3
DSP daughterboard	JP7	Lines 7 & 8	CN4
Mini-ISA daughterboard	JP8	Power, ground, and signaling	CN5
Lines 1 & 2	CN1

E43 PINOUT
Pin	Function
1	Ground
2	Transmit
3	Receive
4	Ground

SRAM BANK 0
Size	Bank 0
32KB	(4) 16K x 4
128KB	(4) 64K x 4

SRAM BANK 0 CONFIGURATION
Size	R66	R67	R68
32KB	Installed	Installed	Not installed
128KB	Not installed	Not installed	Installed

SRAM BANK 1
Size	Bank 1
32KB	(4) 16K x 4
128KB	(4) 64K x 4

SRAM BANK 1 CONFIGURATION
Size	R63	R64	R65
32KB	Installed	Installed	Not installed
128KB	Not installed	Not installed	Installed

BASE I/O ADDRESS (FIRST DIGIT)
Setting	S1/1	S1/2	S1/3
0 xxx h	On	On	On
2 xxx h	Off	On	On
4 xxx h	On	Off	On
6 xxx h	Off	Off	On
8 xxx h	On	On	Off
A xxx h	Off	On	Off
C xxx h	On	Off	Off
E xxx h	Off	Off	Off

BASE I/O ADDRESS (LAST THREE DIGITS)
Setting	S1/4	S1/5	S1/6
x 100h	On	Off	Off
x 180h	Off	On	Off
x 1A0h	Off	Off	On
x 1C0h	Off	On	On
x 280h	On	On	Off
x 2A0h	On	Off	On
x 2C0h	On	On	On
x 340h	Off	Off	Off

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
D1	Red	On	Task processor 1 request in progress
D1	Red	Off	Task processor 1 request not in progress
D1	Green	On	Task processor 1 grant in progress
D1	Green	Off	Task processor 1 grant not in progress

DIAGNOSTIC LED(S) (CON’T)
LED	Color	Status	Condition
D2	Red	On	Task processor 2 request in progress
D2	Red	Off	Task processor 2 request not in progress
D2	Green	On	Task processor 2 grant in progress
D2	Green	Off	Task processor 2 grant not in progress
D3	Red	On	MVIP processor request in progress
D3	Red	Off	MVIP processor request not in progress
D3	Green	On	MVIP processor grant in progress
D3	Green	Off	MVIP processor grant not in progress
D4	Red	On	Processor is reset
D4	Red	Off	Processor is not reset
D4	Green	On	SRAM is "not busy"
D4	Green	Off	SRAM is "busy"
D5	Red	On	Processor is transmitting data
D5	Red	Off	Processor is receiving data
D5	Green	On	Host is reading/writing to SRAM
D5	Green	Off	Processor is reading/writing to SRAM
D6	Red	On	DSP chips are reset
D6	Red	Off	DSP chips are not reset
D8	Green	On	Diagnostics are being performed
D8	Green	Off	Diagnostics are not being performed
D9	Green	On	External power supply is on
D9	Green	Off	External power supply is off