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HD64F2149YV Datasheet(PDF) 594 Page - Renesas Technology Corp

Part # HD64F2149YV
Description  Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2100 Series
PDF  1075 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD64F2149YV Datasheet(HTML) 594 Page - Renesas Technology Corp

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Section 17 Keyboard Buffer Controller
Rev. 3.00 Jan 18, 2006 page 566 of 1044
REJ09B0280-0300
Bit 3
Bit 2
Bit 1
Bit 0
RXCR3
RXCR2
RXCR1
RXCR0
Receive Data Contents
0
0
0
0
—
(Initial value)
1
Start bit
1
0
KB0
1
KB1
1
0
0
KB2
1
KB3
1
0
KB4
1
KB5
10
00KB6
1
KB7
1
0
Parity bit
1—
1
———
17.2.3
Keyboard Data Buffer Register (KBBR)
Bit
76543210
KB7
KB6
KB5
KB4
KB3
KB2
KB1
KB0
Initial value
00000000
Read/Write
RRRRRRRR
KBBR is a read-only register that stores receive data. Its value is valid only when KBF = 1.
KBBR is initialized to H'00 by a reset, in standby mode, watch mode, subactive mode, subsleep
mode, and module stop mode, and when KBIOE is cleared to 0.



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