CY7C67300-100AI Cypress Semiconductor Corp, CY7C67300-100AI Datasheet - Page 73

• Manufacturer Part Number: CY7C67300-100AI
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C67300-100AI

• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Operating Temperature (max): 85C
• Package Type: TQFP
• Rad Hardened: No
• Lead Free Status / Rohs Status: Not Compliant

Register Description
The SPI Receive Count register designates the block byte length
for the SPI receive DMA transfer.
Count (Bits [10:0])
The Count field sets the count for the SPI receive DMA transfer.
Reserved
Write all reserved bits with ’0’.
UART Control Register [0xC0E0] [R/W]
Table 120. UART Control Register
Register Description
The UART Control register enables or disables the UART,
allowing GPIO28 (UART_TXD) and GPIO27 (UART_RXD) to be
freed up for general use. This register must also be written to set
the baud rate, which is based on a 48 MHz clock.
Scale Select (Bit 4)
The Scale Select bit acts as a prescaler that divide the baud rate
by eight.
1: Enable prescaler
0: Disable prescaler
Baud Select (Bits [3:1])
Refer to
Document #: 38-08015 Rev. *J
Bit #
Field
Read/Write
Default
Bit #
Field
Read/Write
Default
Table 121
for a definition of this field.
15
0
7
0
-
-
...Reserved
14
0
6
0
-
-
13
0
5
0
-
-
Scale Select
R/W
12
0
4
0
-
Reserved...
UART Registers
There are three registers dedicated to UART operation. Each of
these registers is covered in this section and summarized in
Table
Table 119. UART Registers
Table 121. UART Baud Select Definition
UART Enable (Bit 0)
The UART Enable bit enables or disables the UART.
1: Enable UART
0: Disable UART. This allows GPIO28 and GPIO27 to be used
for general use.
Reserved
Write all reserved bits with ’0’.
UART Control Register
UART Status Register
UART Data Register
Baud Select
[3:1]
000
001
010
100
101
011
110
111
119.
Register Name
R/W
11
0
3
0
-
Baud Rate w/ DIV8 = 0 Baud Rate w/ DIV8 = 1
Baud Select
115.2 KBaud
57.6 KBaud
38.4 KBaud
28.8 KBaud
19.2 KBaud
14.4 KBaud
9.6 KBaud
7.2 KBaud
R/W
10
0
2
1
-
Address
0xC0E0
0xC0E2
0xC0E4
R/W
9
0
1
1
-
14.4 KBaud
CY7C67300
7.2 KBaud
4.8 KBaud
3.6 KBaud
2.4 KBaud
1.8 KBaud
1.2 KBaud
0.9 KBaud
UART Enable
Page 73 of 99
R/W
8
0
0
1
-
R/W
R/W
R/W
R
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