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MTC20136 Datasheet

ADSL TRANSCEIVER CONTROLLER

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MTC20136
ADSL TRANSCEIVER CONTROLLER
Dedicated controller for use with ADSL
transceiver chips MTC20134, MTC20135 and
MTC20455
– Performs ADSL control functions :
– Initialization procedure
PQFP144
LFBGA160
– Line monitoring during operation
ORDERING NUMBERS:
– Rate adaptive modes
Supports the modem control interface protocol
(CTRLE)
Part number
MTC20136PQ- l1
MTC20136MB-I1
Package
144 pin PQFP
160 pin LBGA
Temp.
-40 /+85°C
-40 /+85°C
Embedded high speed ARM microcore
Glueless connection to MTC20135 and
Can also be ordered using kit number MTK20131 or
MTC20455
MTC20455
Parallel or serial modem control interface
DESCRIPTION
(CTRLE) for glueless connection to
The MTC20136 is a dedicated controller chip, spe-
management entities
cifically designed to control operations of the ST-
Embedded UART
Microelectronics DynaMiTe chipset. The
MTC20136 offers direct glueless interfaces to the
Supports code download
External Bus Interface for
8
and
16-bit
FEPDRaOtaMSheet4MaUnT.dcCoi2mm0p1l3e5maenndtsMaTCco2m04p5le5teDMcoTn/tAroTlMinttrearnfasccieevfoerr
and 16-bit SDRAM
parameters and commands exchange between
144 pins PQFP
transceiver and system management. All real time
ADSL-related functions (including EOC process-
ing) are completely handled by the MTC20136.
Figure 1. Block Diagram
Microcontroller
ARM
Microcore
ROM
RAM
MTC20136
MTC-20135
or
MTC-20455
DataShee
Peripherals
TIMER
UART
Parallel
I/O
RS232
February 2004
DataSheet4U.com
General
Purpose I/Os
CTRLE Data CTRLE
buffer
Interface
Logic
8 data
9 address
Control Bus
SDRAM
FEPROM
Local Bus (optional)
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STMicroelectronics Electronic Components Datasheet

MTC20136 Datasheet

ADSL TRANSCEIVER CONTROLLER

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et4U.com
MTC20136
Functional Description
Figure 1 is showing the global block diagram of the MTC20136. The functions can be grouped into the
following:
– Microcontroller
– External Bus Interface
– Control Interface (CTRLE)
– Peripherals
– Miscellaneous
Microcontroller
The microcontroller block includes an ARM-based microcore and its associated internal memory. 16
Kbytes on internal RAM and 128 x 32-bit words of ROM are foreseen. The ROM essentially contains the
boot sequence needed for code download at startup. The use of the ROM by the microcore is defined by
the state of the TROM pin during reset.
External Bus Interface
The External Bus Interface extends the internal microcontroller bus for connection of external devices. In
particular, the bus is used to connect to the MTC20135 or MTC20455 modem chip and to external SDRAM
(and optional FEEPROM).
The CTRLE functional block implements the ADSL modem command and data buffer and the interface
logic supporting the physical interfaces of the CTRLE.
Peripherals
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The peripherals block includes two UARTS for RS232 interfacing to external systems and two general =
purpose parallel I/O lines.
Miscellaneous
This includes the clock circuitry, reset circuitry, test functions and configuration control signals.
CTRLE Interfaces
External Bus Interface
The external bus interface (EBI) provides a glueless interface to 8 and 16-bit asynchronous Flash EE-
PROM, 16 bit SDRAM devices and to slave devices with an i960-like 16 bit bus interface with multiplexed
address and data (as available on DynaMiTe chips).
The EBI provides two chip selects (E_nCS[1:0]) to be used for memory access (SRAM-like), one dedicat-
ed SDRAM chip select ((E_nCS_S) and four chip selects (E_nCS[7:4]) to be used for access to ADSL
slave devices. The chip selects all correspond to a fixed 1Mbyte memory region in the microcontroller
memory map, except for SDRAM access.
DataShee
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Part Number MTC20136
Description ADSL TRANSCEIVER CONTROLLER
Maker ST Microelectronics
PDF Download

MTC20136 Datasheet PDF






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