CY7C67300
Document #: 38-08015 Rev. *J
Page 81 of 99
41
GPIO29/OTGID
IO
GPIO29:
General Purpose IO
OTGID:
Input for OTG ID pin. When used as OTGID, tie this pin high
through an external pull up resistor. Assuming V
CC
= 3.0V, a 10K to
40K resistor must be used.
42
GPIO28/TX
IO
GPIO28:
General Purpose IO
TX:
UART TX (Data is transmitted from this pin)
43
GPIO27/RX
IO
GPIO27:
General Purpose IO
RX:
UART RX (Data is received on this pin)
44
GPIO26/CTS/PWM3
IO
GPIO26:
General Purpose IO
CTS:
HSS CTS
PWM3:
PWM channel 3
45
GPIO25/IRQ1
IO
GPIO25:
General Purpose IO
IRQ1:
Interrupt Request 1. See Register 0xC006. This pin is also one
of two possible GPIO wakeup sources.
46
GPIO24/INT/
IORDY/IRQ0
IO
GPIO24:
General Purpose IO
INT:
HPI INT
IORDY:
IDE IORDY
IRQ0:
Interrupt Request 0. See Register 0xC006. This pin is also one
of two possible GPIO wakeup sources.
47
GPIO23/nRD/IOR
IO
GPIO23:
General Purpose IO
nRD:
HPI nRD
IOR:
IDE IOR
48
GPIO22/nWR/IOW
IO
GPIO22:
General Purpose IO
nWR:
HPI nWR
IOW:
IDE IOW
49
GPIO21/nCS
IO
GPIO21:
General Purpose IO
nCS:
HPI nCS
50
GPIO20/A1/CS1
IO
GPIO20:
General Purpose IO
A1:
HPI A1
CS1:
IDE CS1
52
GPIO19/A0/CS0
IO
GPIO19:
General Purpose IO
A0:
HPI A0
CS0:
IDE CS0
53
GPIO18/A2/RTS/
PWM2
IO
GPIO18:
General Purpose IO
A2:
IDE A2
RTS:
HSS RTS
PWM2:
PWM channel 2
54
GPIO17/A1/RXD/
PWM1
IO
GPIO17:
General Purpose IO
A1:
IDE A1
RXD:
HSS RXD (Data is received on this pin)
PWM1:
PWM channel 1
55
GPIO16/A0/TXD/
PWM0
IO
GPIO16:
General Purpose IO
A0:
IDE A0
TXD:
HSS TXD (Data is transmitted from this pin)
PWM0:
PWM channel 0
56
GPIO15/D15/nSSI
IO
GPIO15:
General Purpose IO
D15:
D15 for HPI or IDE
nSSI:
SPI nSSI
57
GPIO14/D14
IO
GPIO14:
General Purpose IO
D14:
D14 for HPI or IDE
58
GPIO13/D13
IO
GPIO13:
General Purpose IO
D13:
D13 for HPI or IDE
59
GPIO12/D12
IO
GPIO12:
General Purpose IO
D12:
D12 for HPI or IDE
Table 131. Pin Descriptions
(continued)
Pin
Name
Type
Description
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