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MFC2000 Datasheet(PDF) 22 Page - List of Unclassifed Manufacturers |
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MFC2000 Datasheet(HTML) 22 Page - List of Unclassifed Manufacturers |
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22 / 426 page  MFC2000 Multifunctional Peripheral Controller 2000 Hardware Description 3-2 Conexant 100723A Table 3-1. Pin Description (2 of 6) Pin Name Pin No. I/O Input Type Output Type Pin Description CASEn[1:0] E20,E19 O - 2XT3V DRAM column even address selects used for non- interleave mode and interleave mode. (VDRAM powered) DWRn D17 O - 2XT3V DRAM write. (VDRAM powered) DMAACK2 K19 O - 1XT5VT External DMA acknowledge output (channel 2). DMAREQ2 F4 I H5VT - (Hysteresis) External DMA request input (channel 2). FCS0n/PWM[1] D9 O - 2XT5VT Flash memory chip select 0 or PWM channel 1 output FCS1n/PWM[2] A8 O - 2XT5VT Flash memory chip select 1 or PWM channel 2 output signal. RESETn K18 I/O HU5VT 2XT5VT (Hysteresis, Pull up) MFC2000 Reset input/output XIN G20 I OSC - Crystal oscillator input pin for RTC. (VRTC powered) XOUT H20 O - OSC Crystal oscillator output pin for RTC. (VRTC powered) PWRDWNn H18 I H3V - (Hysteresis) Indicate the loss of prime power (result in SYSIRQ). (VRTC powered) WPROTn H19 O - 1XT3V Write Protect during loss of VDD power. Note: The functional logic is powered by RTC battery power, but the output drive is powered by DRAM battery power. (VRTC powered) BATRSTn G17 I H3V - (Hysteresis) Battery power reset input. (VRTC powered) EXT_PWRDWN_SELn G19 I H3V - (Hysteresis) External power-down detector select input (active low)(VRTC powered) SC_START[0] V8 O - 1XT3V Scanner shift gate control 0 SC_CLK1/SC_CLK2A U9 O - 1XT3V Scanner clock. SC_LEDCTRL[0] U7 O - 1XT3V Scanner LED control 0 SC_LEDCTRL[1]/ SC_START[1] Y8 O - 1XT3V Scanner LED control 1 or Scanner shift gate control 1 SC_LEDCTRL[2]/ SC_START[2] W8 O - 1XT3V Scanner LED control 2 or Scanner shift gate control 2 SSTXD1 J19 O - 2XT3V TX data for SSIF1 SSRXD1 H17 I HU5VT - (Hysteresis, Pull up) RX data for SSIF1 SSCLK1 J20 I/O H5VT 2XT5VT (Hysteresis) Clock input or output for SSIF1 GPIO[0]/FWRn/CLAMP J4 I/O H5VT 2XT5VT (Hysteresis) GPIO[0] or flash write enable signal for NAND-type flash memory or scanner clamp control output GPIO[1]/FRDn M3 I/O H5VT 2XT5VT (Hysteresis) GPIO[1] or flash read enable signal for NAND-type flash memory. GPIO[2]/DMAREQ1/ SSCLK2 V1 I/O H5VT 2XT5VT (Hysteresis) GPIO[2] or DMA channel 1 request input or clock input/output for SSIF2. GPIO[3]/DMAACK1/ SSRXD2 U4 I/O H5VT 2XT5VT (Hysteresis) GPIO[3] or DMA channel 1 acknowledge or RX data for SSIF2 GPIO[4]/CS[2]n U3 I/O H5VT 2XT5VT (Hysteresis) GPIO[4] or I/O chip select [2] (active low) GPIO[5]/CS[3]n/PWM[3] U2 I/O H5VT 2XT5VT (Hysteresis) GPIO[5]or I/O chip select [3] (active low) or PWM channel 3 output |
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