M306H2MC-XXXFP Datasheet, PDF (168/210 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with DATA ACQUISITION CONTROLLER

MITSUBISHI MICROCOMPUTERS
M306H2MC-XXXFP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
with DATA ACQUISITION CONTROLLER
Continuous error correction
When uses humming 8/4 (address 021A16) at tha same time as humming 24/18, can do the continu-
ous error correction.
Continuous error correction sequence is shown in Figure 2.15.12.
A
Humming data_➀ Humming data_➀
M
L
B
Humming data_➁ Humming data_➀
L
H
C
Humming data_➁
H
Humming data_➁
M
D
Humming data_➂
M
Humming data_➂
L
E
Humming data_➃ Humming data_➂
L
H
F
Humming data_➃ Humming data_➃
H
M
1. Writes data A to address 021C16 and writes data B to address
021E16. (Setting the humming data ➀ and L of humming data
➁.)
2. Reads addresses 021C16 and 021E16 data (Obtains the de-
coded value and error information on the humming data ➀).
3. Writes data C to address 021A16 (Setting H and M of the hum-
ming data ➁).
4. Reads addresses 021C16 and 021E16 data (Obtains the de-
coded value and error information on the humming data ➁).
5. Writes data D to address 021C16 and writes data E to 021E16
(Setting the humming data ➂ and L of humming data ➃.)
6. Reads addresses 021C16 and 021E16 data (Obtains the de-
coded value and error information on the humming data ➂).
7. Writes data F to address 021A16 (Setting H and M of the hum-
ming data ➃).
8. Reads addresses 021C16 and 021E16 data (Obtains the de-
coded value and error information on the humming data ➃).
Figure 2.15.12 Continuous error correction sequence
Then, because using a part of circuit of humming 8/4 about this operation, cannot use this operation
at the same time.
When using the humming circuit, do the decoded result reading operation at once after the setting
data of humming. And do not access other memories (Including the humming circuit) before reading
of the decoded result.
Rev . 1.0
167