at78c1502 ATMEL Corporation, at78c1502 Datasheet
at78c1502
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at78c1502 Summary of contents
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... On-chip UART to Access OCDM Unit Description The Atmel AT78C1502 high-performance servo controller fully integrates all of the control and demodulation functions for DVD and CD, optical/mechanical systems. Packaged in 128-lead TQFP and fabricated in 0.35 micron CMOS, the device oper- ates on a 3.3V logic/analog supply and provides 5V tolerance for digital I/O. An AVR- based Servo Processing Unit (SPU) embedded in the device provides programmable control of spindle speed, coarse and fine tracking, focus, sled, draw motor and tilt ...
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... Figure 1. DVD System Block Diagram DRAM Flash AT78C1501 ATAPI I/F Controller DBM ECC SRAM ARM7TDMI AT78C1502 2 AT78C1502 Servo Power Control Drivers System AT78C1503 AT78C1504 Read Laser Power Channel Controller AT78C1507 Read Channel Adj. Sled Spindle Focus Laser T08XX Laser Amp AT78C1505 Pre-amp ...
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... TM3 TM2 TM1 TM0 DGND MRST WG IDF JTRIG LHP DVDD TOK BCA TZC MIRR FOK HD1,2 DGND 38 2050A–DVD–07/02 128 AT78C1502 128-lead TQFP 39 103 102 DGND N/C CAP GPP7 GPP6 GPP5 GPP4 GPP3 GPP2 GPP1 GPP0 DVDD SPCLK BEMF TXD RXD ...
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... External Pin Definition AT78C1502 Power or ground Bidirectional Digital Input Digital Output Analog Input Analog Output. Table 1. External Pin Definition Pin # Symbol 1 DGND DVDD DGND 12 WRB 13 RDB 14 CSB 15 CINT 16 CINTACK 17 TMODE 18 DVDD 19 OCDM_ENAB ...
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Table 1. External Pin Definition (Continued) Pin # Symbol 34 TZC 35 MIRR 36 FOK 37 HD1,2 38 DGND 39 DGND 40 HD3,4 41 CNTRST 42 SINT ADCSTR 45 AVDD 46 MUX_OUT 47 AIN6 48 AIN5 ...
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... AT78C1502 6 Table 1. External Pin Definition (Continued) Pin # Symbol 70 N/C 71 DAC0 72 DAC1 73 CRSDAC 74 CRSDACREF 75 AVDD 76 FINDAC 77 FINDACREF 78 FDAC 79 FDACREF 80 AGND 81 DGND 82 SDEN0 83 SDEN1 84 SDEN2 85 SDATA 86 SCLK 87 RXD 88 TXD 89 BEMF 90 SPCLK 91 DVDD 92 GPP0 93 GPP1 94 GPP2 95 GPP3 96 GPP4 97 GPP5 98 GPP6 99 GPP7 100 CAP 101 ...
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Table 1. External Pin Definition (Continued) Pin # Symbol 106 N/C 107 DVDD 108 CLK1 109 CLK2 110 XOUT 111 XIN 112 DGND 113 A0 114 A1 115 A2 116 A3 117 A4 118 DVDD 119 A5 120 A6 ...
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... CINTACK Logic SINT (ICL) SF ADCREF MUXOUT MTRK Track FCS Hold & SUM Filter (THF) RDSZ LPS AIN4 AIN5 AT78C1502 8 Program Space and Data Space UART Dual-Port RAM Servo Processing Unit (SPU) Timing State Machine (TSM) MUX & ADC (MAD) Clock Osc ...
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... Atmel Corporation 2002. Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard warranty which is detailed in Atmel’s Terms and Conditions located on the Company’s web site. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein ...