TP3420AN308 National Semiconductor, TP3420AN308 Datasheet - Page 10

• Manufacturer Part Number: TP3420AN308
• Description: IC INTERFACE DEVICE ISDN 20-DIP
• Manufacturer: National Semiconductor

Specifications of TP3420AN308

• Applications: *
• Interface: *
• Voltage - Supply: *
• Package / Case: 20-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: *TP3420AN308

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Activation/Deactivation
No Operation
Power-Down (Note 6)
Power-Up
Deactivation Request
Force INFO2 (NT only)
Monitor Mode Activation
Activation Request
Device Modes
NT Mode, Adaptive Sampling (Note 6)
NT Mode, Fixed Sampling
TE Mode, Digital System Interface Slave (Note 7)
TE Mode, Digital System Interface Master
Digital Interface Formats
Digital System Interface Format 1 (Note 6)
Digital System Interface Format 2
Digital System Interface Format 3
Digital System Interface Format 4
BCLK Frequency Settings
Set BCLK to 2.048 MHz
Set BCLK to 256 kHz
Set BCLK to 512 kHz
Set BCLK to 2.56 MHz
B Channel Exchange
B Channels Mapped Direct, B1 to B1, B2 to B2 (Note 6)
B Channels Exchanged, B1 to B2, B2 to B1
Functional Description
Function
FIGURE 5. TP3240A Enhanced MICROWIRE Control Interface Timing
(Continued)
TABLE 4. Control Register Functions
NOP
PDN
PUP
DR
FI2
MMA
AR
NTA
NTF
TES
TEM
DIF1
DIF2
DIF3
DIF4
BCLK1
BCLK2
BCLK3
BCLK4
BDIR
BEX
Mnemonic
10
7
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
6
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit Number
4
1
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
DS009143-21
3
1
0
0
0
0
1
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
2
1
0
0
0
0
1
0
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
0
1
0
0
1
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1