1-6. IC8 XC95144XL-7TQ100C (Complex programable logic (CPLD). Address decoder. Expansion port by using data-latch. Communication logic for RTC. Selector. 1-6-2. Pin Descriptions SERVICE MANUAL 22 Signal name Dir Explanation D[7:0] i/o Connected with CPU data bus for communication. A[24:21] in Connected with CPU address bus for communication. /CS[5:0] in Chip select for other device. /RD in Data output enable of CPU data bus. /WR in Data strobe of CPU data bus. /RESET in For initializing logic. Active low. /GWR,/FWR out buffered /WR. (= /WR) /GDB out Gate of buffer for logic on CPU board. /GDB2 out Gate of buffer for logic except for CPU board. ROMCARD in ROM card. L:
not inserted (normal), H: inserted. /FLASH CS _ out Chip select for Flash-ROM. /CS0 OR (A24 XOR ROMCARD). /ROM CS _ out Chip select for ROM-card. /CS0 OR (/A24 XOR ROMCARD). /SCSI CS _ out Chip select for SCSI controller. /CS5 OR A24. /USBF CS _ out Chip select for USB host controller. /CS5 OR /A24. FPCCLK out FPGA configuration clock on CPU PCB. /EB CS _ out Chip select for DSP on effect PCB. FP2 CCLK _ out FPGA configuration clock on ADAT PCB. /ADAT CS _ out Chip select for FPGA on ADAT PCB. /SMPTE CS _ out Chip select for controller on SMPTE PCB. /DIO CS _ out Chip select for CPLD on DIO PIB. /LSI RESET _ out Reset Voice-LSI. Active low. /VO PLLRST _ out Reset PLL of Voice-LSI.
Active low. /IDE RESET _ out Reset IDE. /ADAT INIT _ out Initialize FPGA and IC on ADAT PCB. Active low. /EB RESET _ out Reset DSP on effect PCB. Active low. VO SIN[1:0] _ out Audio serial data to Voice-LSI’s SIN[1:0] AD DATA _ in Analog-in audio data from CODEC (A/D at MPC). DIO RCVD _ in Digital-in audio data from DIO PCB. ADAT RCVD _ in ADAT-in audio data from ADAT PCB. EB RTN[3:2] _ out Effect return. /SCSI TERM _ out SCSI termination. H:off, L:on. /ADA CS _ out Chip select for CODEC (A/D conv. at MPC). /ADA PD _ out /PD of CODEC and A/D on MPC. AD DFS _ out DFS of a/d converter on MPC. DA CCLK _ out Control clock for CODEC (D/A conv. at MPC).
/DA CS _ out Chip select for dD/A converter at MPC. /DA PD _ out /PD of D/a converter’s on MPC and DIO. /AD CDSEL _ out Select analog-out of CD player at MPC. MUTE out For mute circuit. H: mute on, L: mute off. LSI MCLK _ in MCLK of Voice-LSI. Make synchronous reset for Voice LSI. RTC D[7:0] _ i/o RTC data bus. RTC AS _ out Control for RTC RTC DS _ RTC RW _ /RTC SEL _ /RTC XALM _ WCKE[1:0] out Clock enable of wave SDRAM and DIMM. SEL XTAL0 _ out X2 output enable. H: enable, L: disable. SEL XTAL1 _ out X3 output enable. H: enable, L: disable. MOTOR ON _ out Control fan on MPC.