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ATSAM3308B Datasheet(PDF) 7 Page - ATMEL Corporation |
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ATSAM3308B Datasheet(HTML) 7 Page - ATMEL Corporation |
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7 / 27 page  7 6090D–DRMSD–12-Feb-07 ATSAM3308B WSAD3 - 0 82, 81, 77, 76 In 1 Optional word selects for digital audio input. Used for sampling rate conversion for external incoming digital audio such as AES/BEU or S/Pdif. A0 98 In 2 Slave 8-bit interface address. Indicates data/status or data/ctrl transfer type (CS/RD, low or CS/WR low) SMPD 98 In 2 SmartMedia presence detect P0.10 98 In 2 General-purpose input pin SCLK 98 In 2 Serial slave synchronous interface input clock CS 100 In 3 Slave 8-bit interface chip select, active low. P0.11 100 In 3 General-purpose input pin SYNC 100 In 3 Serial slave synchronous interface input sync signal WR 1 In 4 Slave 8-bit interface write, active low. D7 - D0 data is sampled by chip on WR rising edge if CS is low SMC 1 In 4 SmartMedia configuration. This pin is sensed after power-up. If found low, it is assumed that a SmartMedia connector is present. The built-in firmware will wait for SmartMedia SMPD. P0.12 1 In 4 General-purpose input pin RD 2 In 5 Slave 8-bit interface read, active low. D7 - D0 data is output when RD goes low and CS is low R|B 2 In 5 SmartMedia Ready Busy/ status P0.13 2 In 5 General-purpose input pin IRQ 8 Out 6 Slave 8-bit interface interrupt request. High when data is ready to be transferred from chip to host. Reset by a read from host (CS = 0 and RD = 0) SMRE 8 Out 6 SmartMedia read enable (RE), active low FS0 8 In 6 Frequency sense, sensed at power up. Together with FS1, allows the firmware to know the operating frequency of the chip (see FS1). P0.8 8 I/O 6 General-purpose I/O pin INT 8 Out 6 Serial slave synchronous interface data request, active low. MIDI_IN 17 In 7 Serial MIDI in P0.14 17 In 7 General-purpose input pin SDIN 17 In 7 Serial slave synchronous interface input data MIDI_OUT 18 Out 8 Serial MIDI out FS1 18 In 8 Frequency sense, sensed at power up. FS1/FS0 allow firmware to know operating frequency of chip as follows: 00 6.9552 MHz 01 9.6 MHz 10 11.2896 MHz 11 12.288 MHz P0.9 18 I/O 8 General-purpose I/O DABD3 - 0 67, 66, 65, 64 Out - Four stereo channels of digital audio output, I2S format Table 6-1. Pinout by Pin Name (Continued) Pin Name Pin Number Type Sharing Description |
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