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CS49326 bảng dữ liệu(PDF) 59 Page - Cirrus Logic

tên linh kiện CS49326
Giải thích chi tiết về linh kiện  Multi-Standard Audio Decoder Family
PDF  90 Pages
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nhà sản xuất  CIRRUS [Cirrus Logic]
Trang chủ  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS49326 bảng dữ liệu(HTML) 59 Page - Cirrus Logic

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CS49300 Family DSP
DS339F7
59
Figure 36. Autoboot Sequence
Notes: 1. RESET must be held LOWTrstl.
2. The RD and WR pins must be configured to select a
serial communication mode as defined in the
CS493XX Datasheet. The setup (Trstsu) and hold
(Trsthld) times must be observed for the RD, WR, and
AUTOBOOT pins.
3. INTREQ should be ignored during this period. 200 ms
is typical but this time is application code specific and
may be higher. Wait times should be verified by the
designer.
4. The READ_* and WRITE_* functions are
placeholders for the READ_I2C/READ_SPI and
WRITE_I2C/WRITE_SPI functions defined in Section
6.1, “Serial Communication” on page 36.
CORRECT VALUE?
N
Y
READ_*(VARIABLE)
RESET(LOW) (NOTE 1)
RESET(HIGH) (NOTE 2)
RELEASE ABOOT
(NOTE 4)
WAIT 5 MS
AUTOBOOT COMPLETE
WRITE_*(HW_CONFIG_MSG,
HW_MSG_SIZE)
(NOTE 4)
WRITE_*(SW_CONFIG_MSG,
SW_MSG_SIZE)
(NOTE 4)
ABOOT(LOW)
WAIT 200 MS (NOTE 3)
WRITE_*(KICKSTART,
MSG_SIZE)
(NOTE 4)



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