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IC BLOCK DIAGRAM & DESCRIPTION
IC800 ZR36705TQC(Micro Controller))
Pin
Pin
I/O Circuit
Number
Name
Format
25
D16/P20
26
D17/P21
27
D18/P22
28
D19/P23
29
D20/P24
30
D21/P25
31
D22/P26
32
D23/P27
33
D24/P30
34
D25/P31
35
D26/P32
36
D27/P33
37
D28/P34
38
D29/P35
39
D30/P36
41
D31/P37
42
A00/P40
44
A01/P41
45
A02/P42
46
A03/P43
47
A04/P44
48
A05/P45
49
A06/P46
50
A07/P47
51
A08/P50
52
A09/P51
53
A10/P52
54
A11/P53
55
A12/P54
56
A13/P55
57
A14/P56
58
A15/P57
59
A16/P60
60
A17/P61
61
A18/P62
62
A19/P63
63
A20/P64
64
A21/P65
66
A22/P66
67
A23/P67
68
A24/P70/EOP0
89
INT2/SC1/PE2
88
INT3/SC2/PE3
87
DREQ0/PE4
86
DREQ1/PE5
85
DACK0/PE6
84
DACK1/PE7
76
S10/PE0
77
SO0/PF1
Bits 16 to 23 of external data bus.
E
When the external bus width is set to 8 bits, these pins can be used as general-purpose I/O ports
(P20 to P27).
E
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).
F
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).
F
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).
F
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.
F
[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.
F
[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.
F
[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.
F
[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.
F
[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.
F
[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.
F
[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.
Function
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