EB632 datasheet(55/112 Pages) FREESCALE

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CPM

Functional Differences Between MSC8101 (Mask 2K42A) and MSC8103 (Mask 2K87M), Rev. 2

Freescale Semiconductor

Program the serial interface (SI). Program the SI to retrieve the data bits (192 bits) out of the T1 frame (193

bits). The SI frame pattern is programmed in the SI RAM (Rx or Tx), as shown in Table 44.

Enable TDM. The Initialize the serial interface registers and enable TDMx—in this case TDMA on SI1, as

shown in Table 45.

14.5 New MCC Host Commands

Four new MCC commands are added by the 2K87M mask set as part of the CP command opcodes. Table 46 lists

the new CP command opcodes changed in the 2K87M mask set. The fields are identical to those defined in the

2K42A mask set, except that definitions have been added for the MCC.

Table 47 describes the additional commands listed in Table 46; all other commands are unchanged and are as

described in the MSC8101 Reference Manual.

Table 44. Programming the SI RAM (Rx or Tx) for a T1 Application

Init Values

Description

SI_RAM[00] = 0x0000

1 bit is ignored.

SI_RAM[02] = 0x015E

Route 8 bytes to FCC2.

SI_RAM[04] = 0x015E

Route 8 bytes to FCC2.

SI_RAM[06] = 0x015F

Route 8 bytes to FCC2 and go back to the first entry in table.

Table 45. Programming SI Registers to enable TDM

Init Values

Description

SI1AMR = 0x0040

Common Receive and Transmit Pins for TDMa

SI1GMR = 01

Enable TDMA

Table 46. 2K87M Mask Set CP Command Opcodes

Opcode

Channel

FCC

SCC

SMC (UART/

Transparent)

SMC

(GCI)

SPI

I2C

IDMA

MCC

Timer

Special

0011

ENTER HUNT

MODE

ENTER HUNT

MODE

ENTER HUNT

MODE

——

—

INIT RX

AND TX

PARAMS

(one

channel)

——

0101

GRACEFUL

STOP TX

GRACEFUL

STOP TX

——

—

INIT TX

PARAMS

(one

channel)

——

0110

RESTART TX

——

—

INIT RX

PARAMS

(one

channel)

——

0111

RX BD

—

RX BD

—

MCC

RESET

——

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