AN2442 Freescale Semiconductor / Motorola, AN2442 Datasheet - Page 12

• Manufacturer Part Number: AN2442
• Description: Booting the MSC8102 Device Through TDM
• Manufacturer: Freescale Semiconductor / Motorola

Example Boot Master Code
12
; -------------------------------------------
; Pin Configuration
; PC31 - CLK1
; PC30 - CLK2
; PC29 - TIN2
; PC28 - TOUT2_B
; PC27 - BRG5O
; -------------------------------------------
; Configure TDM pins
write_l
write_l
write_l
write_l
write_l
write_l
; Configure Timer and BRG pins
write_l
write_l
write_l
; -------------------------------------------
; Configure the clock and frame sync
; -------------------------------------------
; TDM clock ~ 446kHz
write_l #$00010048,BRGC5
; Generate TDM frame sync (32 clocks per frame)
write_l #$10000000,TGCR1
write_w #$000E,TMR2
write_w #$001f,TRR2
; -------------------------------------------
; TDMA1 Rx clock - CLK1
; TDMA1 Tx clock - CLK2
; -------------------------------------------
write_b #$00,CMXSI1CR
#$03c00000,PPARA
#$03c00000,PSORA
#$00000000,PDIRA
#$00000fff,PPARB
#$00000fff,PSORB
#$00000000,PDIRB
#$0000001f,PPARC
#$00000008,PSORC
#$00000018,PDIRC
Freescale Semiconductor, Inc.
MSC8101
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BRG5O
TIN2
L1RCLK
L1TCLK
TOUT2
L1RSYN
L1TXD
L1RXD
Example 2. Configure TDM Pins
Figure 9. TDM Pin Connection
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TDM3RCLK
TDM3TCLK
TDM3RSYN
TDM3TSYN
TDM3RDAT
TDM3TDAT
MSC8102