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IC BLOCK DIAGRAM & DESCRIPTION

IC800 ZR36705TQC(Micro Controller))

Pin

Number

25
26
27
28
29
30
31
32

33
34
35
36
37
38
39
41

42
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58

59
60
61
62
63
64
66
67

87
86

Function

Bits 16 to 23 of external data bus.

When the external bus width is set to 8 bits, these pins can be used as general-purpose I/O ports
(P20 to P27).

Bits 24 to 31 of external data bus.

Whten these pins are not used for the data bus,they can be used as general-purpose I/O ports (P30 to P37).

Bits 00 to 15 of external address bus.

When these pins are not used for the address bus,they can be used as general-purpose I/O ports
(P40 to P47 and P50 to P57).

Bits 16 to 23 of external address bus.

When these pins are not used for the address bus, they can be used as general-purpose I/O ports
(P60 to P67).

Bits 24 of external address bus.

[EOP0] DMAC EOP output (ch 0). This function is valid when DMAC EOP output is enabled.

[P70] When this pin is not used as A24 and EOP0, the pin can be used as a general-purpose I/O port.

[INT2] 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 exceptwhen such
output is performed intentionally.

[SC1] UART1 clock I/O. Clock output can be used when UART1 clock output is enabled.

[PE2] General-purpose I/O port. This function is valid when UART1 clock output is disabled.

[INT3] 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.

[SC2] UART1 clock I/O. Clock output can be used when UART1 clock output is enabled.

[PE3] General-purpose I/O port. This function is valid when UART1 clock output is disabled.

[DREQ0,1] 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.

[PE4,5] General-purpose I/O ports.

[DACK0] Output of DMAC external transfer request acceptance (ch 0). This function is valid the output of
DMAC transfer request acceptance is enabled.

[PE6] General-purpose I/O port. This function is valid when thr output of DMAC transfer request scceptance
or DACK0 output is disabled.

[DACK1] Output of DMAC external transfer request acceptance (ch 0). This function is valid when the output
of DMAC transfer request acceptance is enabled.

[PE7] General-purpose I/O port. This function is valid when the output of DMAC transfer request acceptance
or DACK0 output is disabled.

[S10] UART0 data input. This input 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.

[PF0] General-purpose I/O port.

[SO0] UART0 data output. This function is valid when UART0 data output is enabled.

[PF1] General-purpose I/O port. This function is valid when UART0 data output is disabled.

I/O Circuit

Format