Sanyo DVD-SL20V Service Manual page 25

IC BLOCK DIAGRAM & DESCRIPTION
IC800 ZR36705TQC(Micro Controller))
Pin Pin
Number Name
81 SI2/PF5
82 SO2/PF6
83 PF7/INT4/ATGX
72 AN0/STRBIN
/PD0
5 CLK/PA6
96 RAS0/PB0
97 CS0L/PB1
98 CS0H/PB2
99 DW0X/PB3
100 RAS1/PB4/EOP2
1 CS1L/PB5
/DREQ2
2 CS1H/PB6
/DACK2
3 DW1X/PB7
16 MD0
17 MD1
18 MD2
92 X0
91 X1
14 RSTX
13 HSTX
12 NMIX
95 INT0/PE0
94 INT1/PE1
[SI2] UART2 data input. This input is used from time to time while input operation is selected.
Therefore, it is needed to stop output by other functions except when such output is performed intentionally.
[PF5] Denerel-purpose I/O port.
[SO2] UART2 data output. This function is valid when UART2 data output is enabled.
[PF6] General-purpose I/O port. This function is valid when UART2 data output is disabled.
[INT4] Input of external interrupt request. This input is used front time to time while the corresponding
external interrupt is enabled. Therefore, it is needed yo stop output by other functions except when such
output is performed intentionaly.
[ATGX] External trigger input for A/D converter. This input is used from time to time when this pin is selected
for the A/D start cause. Therefore, it is needed to stop output by other functions excep when such output is
performed intentionally.
[PF7] General-purpose I/O port.
[AN0] A/D converter analog input. This input is used from time to time while input operation is selected.
Therefore, it is needed to stop output by other functions except when such output is performed intentionally.
[STRBIN] The clocksource input for DVDSOS logic. This input is used from time to time while input
operation is selected. Therefore, it is needed to stop output by other functions except when such output is
performed intentionally.
[PD0] General-purpose I/O port.
System clock output. The pin outputs the same clock frequency as the external bus operating frequency.
[PA6] When the pin is not used for this purpose, it can be used as a general-purpose I/O port.
RAS output of DRAM bank 0
CASL output of DRAM bank 0
CASH output of DRAM bank 0
WE output of DRAM bank 0
RAS output of DRAM bank 1
CASL output of DRAM bank 1
CASH output of DRAM bank 1
WE output of DRAM bank 1
See the description of the DRAM interface for more information.
[EOP2] DMAC EOP output (ch 2). This function is valid when DMAC EOP output is enabled.
[DREQ2] Input of DMA external transfer request. This input is used from time to time when this pin is
selected for the DMAC transfer cause. Therefore, it is needed to stop output by other functions except
when such output is performed intentionally.
[DACK2] Output of DMAC external transfer reques acceptance (ch 2). This function is valid when the
output of DMAC transfer request acceptance is enabled.
[PB0-7] When each pin is not used for the corresponding purpose, the pin can be used as a general-
purpose I/O port.
Mode pins 0 to 2. Use these pins to setting the basic MCU operation Mode.
Connect these pins directly to Vcc or Vss.
Clock (Oscillator) input
Clock (Oscillator) output
External reset input.
Hardware Standby input.
Non-maskable interrupt (NMI) input (active-low).
[INT0,1] Input of external interrupt request. This input is used from time to time while the corresponding
external interrupt is enabled. Therefore, it is needed to stop output by other functions except when such
output is performed intentionally.
[PE0,1] General-purpose I/O ports.
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Function