ZLF645S2864GP0001 Maxim Integrated, ZLF645S2864GP0001 Datasheet - Page 103

• 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 43. UART Receive/Transmit Data Register (URDATA/UTDATA)
Table 44. UART Status Register (UST)
19-4572; Rev 0; 4/09
Bit
Field
Reset
R/W
Address
Bit Position
[7:0]
Bit
Field
Reset
R/W
Address
Bit Position
[7] 
UART Receive Data Register/UART Transmit Data Register
UART Status Register
Receive
Status
Description
UART Receive/Transmit
When read, returns received data.
When written, transmits written data.
R/W
R/W
The UART Receive/Transmit Data register (see
from the UART channel. When the UART receives a data byte, it can be read from this
register. The UART receive interrupt is cleared when this register is used. Data 
written to this register is transmitted by the UART.
The UART Status register (see
cleared by reading the UART Receive/Transmit register (
Value
X
7
7
0
0
1
Description
Receive Status —Set when data is received; cleared when URDATA is read.
UART Receive Data register empty.
UART Receive Data register full.
Parity
Error
R/W
R/W
X
6
6
0
Overrun
Error
R/W
R/W
Bank Independent: F1h; Linear: 0F1h
Bank Independent: F2h; Linear: 0F2h
X
5
0
5
UART Receive/Transmit
Table
Framing
Error
R/W
R/W
X
4
4
0
44) displays the status of the UART. Bits [6:3] are
UART Receive Data Register/UART Transmit Data
Break
R/W
R/W
Table
X
3
3
0
43) is used to send and retrieve data
Transmit
F1h
ZLF645 Series Flash MCUs
Data
R/W
R/W
X
2
2
0
).
Product Specification
Complete
Transmit
R/W
R/W
X
1
1
1
Noise
Filter
R/W
R/W
X
0
0
0
95