HD6417618 RENESAS [Renesas Technology Corp], HD6417618 Datasheet - Page 170
HD6417618
Manufacturer Part Number
HD6417618
Description
32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7618 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6417618.pdf
(646 pages)
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Part Number:
HD6417618RBGN100V
Manufacturer:
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Section 7 Bus State Controller (BSC)
Rev. 6.00 Jun. 12, 2007 Page 138 of 610
REJ09B0131-0600
Bit
7
6
5
4
3
Bit Name
CMF
CKS2
CKS1
CKS0
Initial
Value
0
0
0
0
0
R/W
R/W
R
R/W
R/W
R/W
Description
Compare Match Flag
Indicates that a compare match occurs between the
refresh timer counter (RTCNT) and refresh time constant
register (RTCOR).
[Clearing condition]
When 0 is written to this bit after reading RTCSR with
CMF = 1.
[Setting condition]
When RTCNT value matches RTCOR value
Reserved
This bit is always read as 0. The write value should
always be 0.
Clock Select
Select the clock input to count-up the refresh timer
counter (RTCNT).
000: Stop the counting-up
001: Bφ/4
010: Bφ/16
011: Bφ/64
100: Bφ/256
101: Bφ/1024
110: Bφ/2048
111: Bφ/4096
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