參數(shù)資料
型號(hào)： MC72000
廠商： 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述： Integrated Bluetooth Radio
中文描述： 集成藍(lán)牙無線
文件頁數(shù)： 98/156頁
文件大?。?/td> 1782K
代理商： MC72000
98
MC72000 Advance Information Data Sheet
Go to: www.freescale.com
MOTOROLA
Hardware Functional Description
TEFS—Transmit Early Frame Sync
This bit controls when the frame sync is initiated for the transmit and receive sections. See Figure 60
for an example timing diagram of the FS options.
1 = Frame sync is initiated one bit before the data is transmitted.
The frame sync is disabled after one bit-for-bit length frame sync and after one word-for-word
length frame sync.
0 = Frame sync is initiated as the first bit of data is transmitted.
7.4.5.2.10
SSI Time Slot Register (STSR)
The STSR is used when data is not to be transmitted in an available transmit time slot. For the purposes of
timing, the time slot register is a write-only register that behaves like an alternate transmit data register,
except that instead of transmitting data, the STXD signal is tri-stated. Using this register is important for
avoiding overflow/underflow during inactive time slots.
Figure 62. STSR Register Diagram
7.4.5.2.11
SSI FIFO Control/Status Register (SFCSR)
This register provides for configuration of the transmit and receive FIFO registers and allows for reporting
of the amount of data contained in each FIFO.
Figure 63. SFCSR Register Diagram
RFCNT[3:0]—Receive FIFO Counter
This read-only bit field indicates the number of data words in the RXFIFO. Table 45 shows the
RFCNT[3:0] bit field encoding.
Table 45. RFCNT[3:0] Encoding
.
Base + 0x0C
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
R
W
Dummy Register, written during inactive time slots (Network Mode)
x
x
x
x
x
RESET:
x
x
x
x
x
x
x
x
x
x
x
= Unimplemented or Reserved
Base + 0x0E
15
14
RFCNT[3:0]
13
12
11
10
TFCNT[3:0]
9
8
7
6
5
4
3
2
1
0
R
W
RFWM[3:0]
TFWM[3:0]
RESET:
= Unimplemented or Reserved (write as 0)
Bits
Description
0000
0001
0010
0011
0100
0101
0 data words in RXFIFO
1 data words in RXFIFO
2 data words in RXFIFO
3 data words in RXFIFO
4 data words in RXFIFO
5 data words in RXFIFO
F
For More Information On This Product,
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