ZLF645S2864GP0001 Maxim Integrated, ZLF645S2864GP0001 Datasheet - Page 105

• Manufacturer Part Number: ZLF645S2864GP0001
• Description: 8-bit Microcontrollers - MCU Crimzon Flash Infrared MCU
• Manufacturer: Maxim Integrated

Specifications of ZLF645S2864GP0001

• Core: Z8
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 8 MHz
• Program Memory Size: 64 KB
• Data Ram Size: 1 KB
• Operating Supply Voltage: 2 V to 3.6 V
• Interface Type: UART
• Number Of Programmable I/os: 5
• Number Of Timers: 2 x 8 bit, 1 x 16 bit
• Processor Series: ZLF645
• Program Memory Type: Flash

Table 45. UART Control Register (UCTL)
19-4572; Rev 0; 4/09
Bit
Field
Reset
R/W
Address
Bit Position
[7] 
[6] 
[5] 
[4] 
[3] 
[2]
[1] 
[0] 
UART Baud Rate Generator Constant Register
Transmitter
Enable
R/W
Value
The UART baud rate generator determines the frequency at which UART data is received
and transmitted. This baud rate is determined by the following equation:
UART Data Rate (bps)
7
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Description
Transmitter disabled.
Transmitter enabled.
Receiver disabled.
Receiver enabled.
UART Interrupts disabled.
UART Interrupts enabled.
Parity disabled.
Parity enabled.
Even parity selected.
Odd parity selected.
No break is sent.
Send Break (force Tx output to 0).
One stop bit.
Two stop bits.
Baud Rate Generator —When the transmitter and receiver are disabled, the
BRG can be used as an additional timer. When setting this bit, clear bits [7:6] in
this register. Also set bit [5] if an interrupt is required when the BRG is reloaded.
BRG used as Baud Rate Generator for UART.
BRG used as timer.
Receiver
Enable
R/W
6
0
Interrupts
Enable
UART
R/W
Bank Independent: F3h; Linear: 0F3h
5
0
=
16 x UART Baud Rate Divisor Value (BCNST)
Enable
Parity
R/W
4
0
System Clock Frequency (Hz)
Select
Parity
R/W
UART Baud Rate Generator Constant Register
3
0
Break
Send
ZLF645 Series Flash MCUs
R/W
2
0
Product Specification
Stop Bits Baud Rate
R/W
1
0
Generator
R/W
0
0
97