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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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