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PDF MSM7564-01 Data sheet ( Hoja de datos )
| Número de pieza | MSM7564-01 | |
| Descripción | A Single Chip 14.4 kbps Data & Fax Modem | |
| Fabricantes | OKI | |
| Logotipo |  |
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¡¡SemicondSucetormiconductor
MSM7564-01
A Single Chip 14.4 kbps Data & Fax Modem
MSM7564-01
GENERAL DESCRIPTION
The MSM 7564-01 is a highly integrated single-chip modem IC which provides the functions needed
to construct 14.4 kbps full-duplex and half-duplex modems. This device is compliant with the
following data communication formats : ITU-T Recommendation V.32bis, V.32, V.22bis, V.21 and
Bell standard Bell 212A and Bell103 modes, and facsimile communication formats : ITU-T
Recommendation V.17, V29, V.27ter, V.21 ch2.
This device contains fundamental functions : high speed DSP, analog front end, and digital logic
circuit. It also provides additional circuits such as test functions, synchronous-asynchronous
conversion circuit, DTMF generator/detector, programmable tone generator/detector, voice output
function and sleep mode. The MSM7564-01 is designed to provide a microprocessor peripheral to
interface with popular single-chip microprocessors for the control of modem functions through its
8-bit multiplexed address/data bus.
FEATURES
• Data mode : ITU-T Recommendation V.32bis, V.32, V.22bis, V.22, V.21
Bell standard Bell 212A, Bell103
• Fax mode : ITU-T Recommendation V.17, V.29, V.27ter, V.21 ch2
• Synchronous/Asynchronous conversion
• Scrambler/Descrambler
• DTMF, answer tone, and guard tone generator
• Programmable transmit attenuation (15 dB, 1 dB steps)
• Call progress, answer tone, DTMF, and carrier detector
• Receiving signal quality monitor
• Independent adaptive line equalization for transmit and receive
• Carrier detection level selectable (4 steps)
• Echo canceler
• Jitter canceler
• Programmable tone generator/detector
• Voice output function
• Test mode :
Local analog loop (internal/external)
Remote digital loop
511PN pattern generator for error test
1:1 pattern generator for error test
Error counter
• Sleep mode
• Single +5 V DC supply
• CMOS technology for low power consumption
Operation mode : 500 mW Typ. @ +5 V
Sleep mode
: < 10 mW @ +5 V
• Package options:
144-pin plastic TQFP (TQFP144-P-2020-K)
(Product name : MSM7564-01GS-K)
84-pin plastic QFJ
(QFJ84-P-S115)
(Product name : MSM7564-01JS)
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¡ Semiconductor
MSM7564-01
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84-Pin Plastic QFJ
Pin Symbol Pin Symbol Pin Symbol Pin Symbol
1 GND4 22 VDD5 43 WR 64 SYCR
2
AOD4
23
TI1
44 BTD 65
ST2
3
AOD3
24
TI0
45
RD
66 XYCK
4
AOD2
25
TI9
46
CS1
67 SRD
5 AOD1 26 GND5 47 GND2 68 STCHG
6 VDD4 27 VDDP 48 RST 69 TO2
7
AOD0
28
MCK
49
CS0
70
TO0
8
ADA5
29
TO5
50 CKOEN 71
TO3
9 ADA1 30 GNDP 51 SBTM 72
RT
10 ADA7 31 GNDA 52 SLEEP 73 CPUCLK
11 TI8 32 SG 53 RBTM 74 GACLK
12 TO10 33 AINN 54 TI4 75 TO1
13 TO6 34 AINP 55 TI3 76 ADA6
14 TO13 35 AOUTN 56 TI5 77 ADA4
15 TO12 36 AOUTP 57 TO4 78 ADA3
16 TO11 37 VDDA 58 CPUTYPE 79 VDD3
17 TO7 38 GND1 59 GND3 80 ADA2
18 TO9 39 TI2 60 BRD 81 ADA0
19 TO8 40 STD 61 ALE 82 AOD7
20 TI6 41 VDD1 62 SOM 83 AOD6
21 TI7 42 ST1 63 VDD2 84 AOD5
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¡ Semiconductor
MSM7564-01
Serial Interface
MSM7564 provides a one channel serial interface, including synchronous-asynchronous and
asynchronous-synchronous converters. Select synchronous or asynchronous. In synchronous mode,
the transmit data is synchronized with the clock provided from this chip or DTE. Serial transmit data
to STD pin is latched with the rising edge of ST1 or ST2, and receive data on SRD is output
synchronously with the falling edge of RT. This chip also includes a scrambler and descrambler.
Parallel Interface
MSM7564 contains twenty 8-bit registers (location from addresses 00H through 0FH and 1C through
1F), which are used to control this chip and to detect various signals. Connect this chip to either
multiplexed address and data bus such as Intel-compatible (80 mode) or separate address and data
bus such as Motorola-compatible (68 mode).
Transmit and Receive Level
Analog input and output are differential amplifiers, and are ±1.2 VO-P peak signals. The level of the
transmit line signal is –10 dBm. The modem can provide 15 dB programmable transmit attenuation
with 1 dB steps controlled by the TXLEV bit in located 0BH register. Receive signal level is from –10
dBm to –43 dBm. Carrier detection level can be selected from 4 levels (–43, –33, –26, –16 dBm) by the
CDLEV bit located in register 0BH. An amplitude equalizer in transmitter and receiver can be
individually controlled by RAEQL and SAEQL bits in register 07H.
DTMF Tone, Answer Tone, and Guard Tone Generators
The modem can generate 16 types of DTMF tones using the PBANSEL bit located in register 05H.
It also generates answer tone and guard tone.
Various Detection Circuits
The internal detection circuit monitors carrier, call progress tone, answer tone, DTMF tone, and other
receive signals needed for each modem mode, and stores them in the corresponding bits of each of
the following registers : 0C, 0D, 1C, and 1D. Classification of detected tones is controlled by
DETMODE bit in register 08H. If the contents of registers 0C, 0D, 1C, and 1D change, the interruption
signal (STCHG) for controlling microprocessor is generated.
Programmable Tone Generator and Detector
The transmission of programmable tone 1 and tone 2 is available and is controlled by PTONE1 and
PTONE2 bits in 05H register. To use this function, the initial download of frequency and gain is
needed. This modem can output 16 kinds of frequency selected by PBANSEL bit of register 05H
(composition of two tones is also available.). PTONE1 and PTONE2 are the same frequency and only
the gain is variable. Each bit of D7, D6, D3, D2, D1, and D0 in register 0C can be used for
programmable tone detecting by rewriting a coefficient of internal filter at the initial download.
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11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet MSM7564-01.PDF ] | |
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