ZLF645S0P2864G Zilog, ZLF645S0P2864G Datasheet - Page 100

• Manufacturer Part Number: ZLF645S0P2864G
• Description: Microcontrollers (MCU) 64K Flash 512B RAM 28 pin
• Manufacturer: Zilog

Specifications of ZLF645S0P2864G

• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 64 KB
• Data Ram Size: 512 KB
• Interface Type: ICP, UART
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 3
• Maximum Operating Temperature: + 70 C
• Mounting Style: Through Hole
• Package / Case: PDIP-28
• Minimum Operating Temperature: 0 C
• Lead Free Status / Rohs Status: Details

Table 47. UART Baud Rate Generator Constant Register (BCNST)
PS026407-0408
Bit
Field
Reset
R/W
Address
Bit Position
[7:0]
Note:
R/W
Description
Baud Rate Generator Constant
When read, returns the actual timer count value (when UCTL[0]=1).
When written, sets the Baud Rate Generator Constant.
The actual baud rate frequency = XTAL ÷ (32 x BCNST ).
The system clock is usually the crystal clock divided by 2. When the UART baud rate gen-
erator is used as an additional timer, a Read from this register returns the actual value of
the count of the BRG in progress and not the reload value. See
This register is not reset after a Stop Mode Recovery.
7
1
R/W
6
1
R/W
Bank Independent: F4h; Linear: 0F4h
5
1
Baud Rate Generator Constant
R/W
4
1
R/W
UART Baud Rate Generator Constant Register
3
1
ZLF645 Series Flash MCUs
R/W
2
1
Table
Product Specification
47.
R/W
1
1
R/W
0
1
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