Ic Description - JVC HR-XV1EK Service Manual

DVD PCB OEC6069A (IC1001)
PIN NAME I/O
D0 to D7 I/O Data: 0 to 7 for data bus
D8 to D15 I/O Data: 8 to 15 for data bus
A0 to A7 O Address: 0 to 7 for address bus
A8 to A15 O Address: 8 to 15 for address bus
A16 to A23 O Address: 16 to 23 for address bus
RDX O Read: Strobe signal for reading external memory
WRX O Write LL: Strobe signal for writing data on pins D0 to D7
RASOX O Row address strobe 0: Outputs /RAS strobe for DRAM if address is within specified address area
ROMC5X O Chip select 2: Outputs "low" if address is within specified address area
ZRC5X O Chip select 3: Outputs "low" if address is within specified address area
TBFC5X O Port 84: Output port (output "high" when initialized)
SVCEX O Chip select 5: Outputs "low" if address is within specified address area
WAITX I Wait: Signal used to request CPU bus wait
LCA50X O Lower column address strobe 0: Outputs lower CAS strobe for DRAM if address is within specified address area
UCA50X O Upper Column address strobe 0: Outputs upper CAS strobe for DRAM if address is within specified address area
OEOX O Output enable 0: Outputs read enable signal for DRAM
WEOX O Write enable 0: Outputs erite enable signal for DRAM
NMI_INH O Port B0: Output port (output "high" when initialized)
PGBSX O Port B1: Output port (output "high" when initialized)
CVSX O Port B2: Output port (output "high" when initialized)
S2X O Port B3: Output port (output "high" when initialized)
S1X O Port B4: Output port (output "high" when initialized)
PROMCK O Timer output 1: 8-bit timer 0 or 1 output
PROMDA O Timer output 3: 8-bit timer 2 or 3 output
WP I/O Port D0: I/O port
I45INTX I/O Port D1: I/O port
DMFG I/O Port D5: I/O port
CTS I/O Port E0: I/O port
TBFINTX I/O Port E1: I/O port
DISKWOI I/O Port E2: I/O port
SVINTX I/O Port E5: I/O port
DSTBX I/O Port E6: I/O port
DSPSO O Serial send data 0
DSPSI I Serial receive data 0
DSPCK I/O Port F2: I/O port
TXD O Serial send data 1
RXD I Serial receive data 1
RTS I Serial data receive enable 1
AN0 to AN7 I Analog input: Input to 10-bit AD converter
DAOUT0 O DA output 0: Output form 8-bit DA converter 0
DAOUT1 O DA output 1: Output form 8-bit DA converter 1
LOMN O Terminal count 0: Outputs "high" strobe when counter value of micro-DMA channel 0 is "0"
LOMP O Terminal count 1: Outputs "high" strobe when counter value of micro-DMA channel 1 is "1"
I45RSTH O Terminal count 2: Outputs "high" strobe when counter value of micro-DMA channel 2 is "0"
SVRSTX O Terminal count 3: Outputs "high" strobe when counter value of micro-DMA channel 3 is "0"
LSRDVD I/O Port H4: I/O port (schmitt input)
SCLK I/O Port: I/O port
SO I/O Port: I/O port
DACSOX I/O Port: I/O port
PLLCSX I/O Port: I/O port
NTPLX I/O Port: I/O port
Non-maskable interrupt request pin: Interrupt request pin with falling edge
VSW I
Can also be operated at rising edge by program. (schmitt input)
AM0, 1 I Address mode: Selects external Data Bus width
TEST0, 1 I Test: Input "low" when using
CLK O Clock output: Outputs system clock
X1/X2 I/O Oscillator connecting pin
RESET I Reset: Initializes LSI (with pull-up resistor) (schmitt input)

IC DESCRIPTION

DESCRIPTION
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