RC2324DPL ETC, RC2324DPL Datasheet - Page 28

• Manufacturer Part Number: RC2324DPL
• Description: Single Device Data/fax Modem Data Pump
• Manufacturer: ETC

3-8
3.0 Software Interface
3.5 Interface Memory Access to DSP RAM
Table 3-3. DSP RAM Parameters
No.
10
1
2
3
4
5
6
7
8
9
XCR/YCR
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
(1)
3.5 Interface Memory Access to DSP RAM
The DSP Interface memory acts as an intermediary during host to DSP RAM or
DSP RAM to host data exchanges. The addresses stored in modem Interface
memory RAM Address registers (i. e., XADD and YADD) by the host, in
conjunction with the data or coefficient RAM bits (i. e., XCR and YCR)
determine the DSP RAM addresses for data access.
3.6 Host Programmable Data
The parameters available In DSP RAM are listed in Table 3-3 along with the X
RAM or Y RAM address and corresponding XCR or YCR bit value. The scaling
for the host programmable data is described in the Modem Designer’s Guide.
X RAM
Addr
0-1E
7D
10
1E
49
71
7C
72
7E
3F
0
–
–
–
–
Y RAM
Addr
0-1E
10
1E
49
–
–
–
0
–
–
–
–
–
–
–
D96V24DSA
Adaptive Equalizer Coefficients, Real
First coefficient, Real (1) (Data/Fax)
Last Coefficient, Real (17) (Data)
Last Coefficient, Real (31) (Fax)
Adaptive Equalizer Coefficients, Imag.
First Coefficient, Imag. (1) (Data/Fax)
Last Coefficient, Imag. (17) (Data)
Last Coefficient, Imag. (31) (Fax)
Rotated Error, Real
Rotated Error, Imaginary
Max AGC Gain Word
Pulse Dial Interdigit Time
Tone Dial Interdigit Time
Pulse Dial Relay Make Time
Pulse Dial Relay Break Time
DTMF Duration
Single Device Data/Modem Data Pump
Parameter
RC96V24DP