DS26303DK Maxim Integrated Products, DS26303DK Datasheet - Page 8

• Manufacturer Part Number: DS26303DK
• Description: KIT DESIGN FOR DS26303
• Manufacturer: Maxim Integrated Products

Specifications of DS26303DK

• Main Purpose: Telecom, Line Interface Units (LIUs)
• Utilized Ic / Part: DS26303
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Figure 1. DS26303DK JTAG Chain
Address/Data Bus Connector
The DS26303DK has a connector (J1) to monitor all local bus activity for the design kit. All the signals can be
captured with a high-impedance probe and displayed on an oscilloscope or logic analyzer. Note: If the FPGA
switch (SW5) is in the “OFF” position, the on-board microcontroller will no longer drive any data onto the local bus.
Therefore, the user can now connect the local bus of the DS26303 into another system without making any
modifications to the hardware. See
Table 2. Address/Data Connector Pinout
PIN
11
13
15
17
19
21
23
25
27
29
31
33
35
1
3
5
7
9
JTMS
JTCLK
JTDI
JTDO
MODESEL
CSFPGA
CSBERT
ALELIU
NAME
CSLIU
MUX
WR
RD
A8
A7
A6
A5
A4
A3
A2
A1
A0
—
ON-BOARD
(U2)
µC
Local Address Bit 8
Local Address Bit 7
Local Address Bit 6
Local Address Bit 5
Local Address Bit 4
Local Address Bit 3
Local Address Bit 2
Local Address Bit 1
Local Address Bit 0
Mux
Chip Select FPGA
Chip Select DS2174
Chip Select DS26303
Address Latch Enable
Read Signal
Write Signal
Mode Select
Not Used
FUNCTION
Table 2
FLASH MEM
SW4
FOR FPGA
(U19)
for specific pin information for connector J1.
JTAG
8 of 43
FPGA
GEN
(U5)
34, 36
37–40
PIN
10
12
14
16
18
20
22
24
26
28
30
32
2
4
6
8
JTMS
JTCLK
JTDI
JTDO
ONCE
FPGAEN
MOTEL
NAME
ON-BOARD
CLKE
UIN1
UIN2
GND
RDY
3.3V
INT
OE
D0
D1
D2
D3
D4
D5
D6
D7
DS26303
(U6)
(U2)
SW4
µC
Local Data Bit 0
Local Data Bit 1
Local Data Bit 2
Local Data Bit 3
Local Data Bit 4
Local Data Bit 5
Local Data Bit 6
Local Data Bit 7
SPI Clock Edge Select
Ready Handshake from LIU
Output Enable LIU
Motorola/Intel Select
Interrupt for DS26303
FPGA Enable Pin
User Input 1
User Input 2
Board 3.3V
Ground
FLASH MEM
FUNCTION
FOR SPI
(U7)