HD6432160 RENESAS [Renesas Technology Corp], HD6432160 Datasheet - Page 635
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HD6432160
Manufacturer Part Number
HD6432160
Description
Hitachi 16-Bit Single-Chip Microcomputer
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6432160.pdf
(829 pages)
- Current page: 635 of 829
- Download datasheet (5Mb)
Table 23.5 Boot Mode Operation
Transmits data H'55 when data H'00
Transmits number of bytes (N) of
programming control program to be
transferred as 2-byte data (low-order byte
following high-order byte).
Transmits 1-byte of programming control
program (repeated for N times).
Continuously transmits data H'00
Receives data H'AA.
Receives data H'AA.
is received error-free.
at specified bit rate.
Processing Contents
Host Operation
Boot program
erase error
Communications Contents
H'00, H'00 . . . H'00
High-order byte and
low-order byte
Echoback
Echoback
H'FF
H'AA
H'AA
H'00
H'55
H'XX
Checks flash memory data, erases all flash
memory blocks in case of written data
existing, and transmits data H'AA to host.
(If erase could not be done, transmits data
H'FF to host and aborts operation.)
Branches to programming control program
transferred to on-chip RAM and starts
execution.
• Measures low-level period of receive data H'00.
• Calculates bit rate and sets it in BRR of SCI_1.
• Transmits data H'00 to host as adjustment end
Echobacks received data to host and also
transfers it to RAM (repeated for N times).
Branches to boot program at reset-start.
Echobacks the 2-byte data received to host.
After receiving data H'55, transmits data
H'AA to host.
indication.
Rev. 2.0, 08/02, page 595 of 788
Boot program start
Processing Contents
LSI Operation
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