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CXD1198AQ
(3)
XRAS (Row Address Strobe : negative logic output)
Strobe negative logic output signal for row address in dynamic RAM.
(4)
XCAS (Column Address Strobe : negative logic output)
Strobe negative logic output signal for column address in dynamic RAM.
(5)
XWE (Write Enable : negative logic output)
Strobe negative logic output signal for writing in dynamic RAM.
(Note)
Use a DRAM with an access time of 80 ns or less in this IC.
1-4. Subcode Interface (4 pins)
(1)
WFCK (Write Frame Clock : input)
Write frame clock input signal from the CXD2500; connected to the WFCK pin of the CXD2500.
(2)
SBSY (Subcode Sync : positive logic input)
Subcode frame sync input signal from the CXD2500; connected to the SCOR pin of the CXD2500.
(3)
SBSI (Subcode Serial Input : input)
Channel P-W subcode data input signal from the CXD2500; connected to the SBSO pin of the CXD2500.
(4)
EXCK (External Clock : output)
Readout clock signal to the CXD2500 for reading channel P-W subcode data input to SBSI; connected to
the EXCK pin of the CXD2500.
1-5. CPU Interface (19 pins)
(1)
DB0 to 7 (CPU Data Bus : input/output)
8-bit CPU data bus signals
(2)
A0 to 5 (CPU Address : input)
Address input signals for selecting this IC internal register and the host interface registers of the
CXD1186BQ from the CPU
(3)
XWR (CPU Write : negative logic input)
Strobe negative logic input signal for the CPU to write data into this IC internal register and the host
interface registers of the CXD1186BQ.
(4)
XRD (CPU Read : negative logic input)
Strobe negative logic input signal for the CPU to read data from this IC internal register and the host
interface registers of the CXD1186BQ.