TFRA08C13-DB AGERE [Agere Systems], TFRA08C13-DB Datasheet - Page 172

• Manufacturer Part Number: TFRA08C13-DB
• Description: TFRA08C13 OCTAL T1/E1 Framer
• Manufacturer: AGERE [Agere Systems]

TFRA08C13 OCTAL T1/E1 Framer
FDL Parameter/Control Registers ((A00—A0E); (A20—A2E); (B00—B0E);
(B20—B2E) (C00—C0E); (C20—C2E); (D00—D0E); (D20—D2E))
Table 171. FDL Receiver Interrupt Level Control Register (FDL_PR6) (A06; A26; B06; B26; C06; C26; D06;
Table 172. FDL Register FDL_PR7
Table 173. FDL Receiver Match Character Register (FDL_PR8) (A08; A28; B08; B28; C08; C28; D08; D28)
172
0—5
0—7
0—7
Bit
Bit
Bit
6
7
FRIL0—FRIL5 FDL Receive Interrupt Level. Bit 0—bit 5 define receiver FIFO full threshold value that
D26)
FRMC0—
FRANSIE
Symbol
Symbol
Symbol
FRMC7
—
—
will generate the corresponding FRF interrupt. FRIL = 000000 forces the receive FDL
FIFO to generate an interrupt when the receive FIFO is completely full. FRIL = 001111
will force the receive FDL FIFO to generate an interrupt when the receive FIFO contains
15 or more bytes.
Reserved. Write to 0.
FDL Receiver ANSI Bit Codes Interrupt Enable. If this bit is set to 1, an interrupt pin
condition is generated whenever a valid ANSI code is received.
Reserved.
Receiver FDL Match Character. This character is used only in transparent mode (regis-
ter FDL_PR9 bit 6 = 1). When the pattern match bit (register FDL_PR9 bit 5) is set to 1,
the receive FDL unit searches the incoming bit stream for the receiver match character.
Data is loaded into the receive FIFO only after this character has been identified. The
byte identified as matching the receiver match character is the first byte loaded into the
receive FIFO. The default is to search for a flag, but any character can be programmed
by the user. The search for the receiver match character can be in a sliding window fash-
ion (register FDL_PR9 bit 4 = 0) or only on byte boundaries (register FDL_PR9 bit 4 = 1).
Description
Description
Description
Preliminary Data Sheet
(continued)
Lucent Technologies Inc.
Lucent Technologies Inc.
October 2000