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R01UH0336EJ0102 Rev.1.02
Page 1227 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 22 Synchronous/Asynchronous Serial Interface H (UARTH)
14
URTHnEGE
Enables and disables the extension bit detection interrupts.
0: Disables extension bit detection interrupts
Detection of an extension bit under the condition set by URTHnEJL does not
change the extension bit detection flag (URTHnSTR1.URTHnEBD), and an
extension bit detection interrupt will not be generated.
1: Enables extension bit detection interrupts
Detection of an extension bit under the condition set by URTHnEJL leads to
setting of the extension bit detection flag (URTHnSTR1.URTHnEBD) and
generation of an extension bit detection interrupt.
•
This setting becomes valid when the setting of the bit length for transmission
and reception is 8 bits (URTHnCTL1.URTHnCLG = 1) and operation with the
extension bit is enabled (URTHnEBE = 1).
•
Changing this bit is only allowed while operation of UARTHn is disabled
(URTHnCTL0.URTHnPW = 0).
•
For details on extension bit detection, refer to Section 22.6.5, Extension bit
Detection/ID Compare-Match Detection.
13
URTHnEJL
Selects the condition for detecting the extension bit.
0: The value zero is the condition for detecting the extension bit.
1: The value one is the condition for detecting the extension bit.
•
As condition for extension bit detection, this setting selects a level of the
extension bit (0 or 1) after control of the reception data level
(URTHnCTL1.URTHnRDL).
•
While ID comparison is enabled (URTHnOPT1.URTHnIDCN = 1), a match in
ID comparison after detection of the extension bit produces an extension bit
detection interrupt.
•
Changing this bit is only allowed while the UARTHn operation is disabled
(URTHnCTL0.URTHnPW = 0).
•
For details on extension bit detection, refer to Section 22.6.5, Extension bit
Detection/ID Compare-Match Detection.
12
URTHnSCFR
Enables and disables the noise filter for the synchronizing clock input.
0: Enables noise filter
1: Disables noise filter
•
If slave mode and data consistency checking are enabled (i.e. if
URTHnCTL0.URTHnSLDC = 1), set this register to the same value as
URTHnRXFR.
•
Changing this bit is only allowed while UARTHn operation is disabled
(URTHnCTL0.URTHnPW = 0).
11
URTHnRSFR
Enables and disables the noise filter for the handshake signal input.
0: Enables noise filter
1: Disables noise filter
•
Changing this bit is only allowed while UARTHn operation is disabled
(URTHnCTL0.URTHnPW = 0).
10
URTHnRXFR
Enables and disables the noise filter for received data.
0: Enables noise filter
1: Disables noise filter
•
When operation is as a slave in synchronous mode and data consistency
checking is enabled (URTHnCTL0.URTHnSLDC = 1), set this bit to the same
value as URTHnSCFR.
•
Changing this bit is only allowed while UARTHn operation is disabled
(URTHnCTL0.URTHnPW = 0).
9
URTHnRTSL
Selects the active level of the output signal for handshaking.
0: Low is the active level.
1: High is the active level.
•
Changing this bit is only allowed while UARTHn operation is disabled
(URTHnCTL0.URTHnPW = 0).
Table 22-15
URTHnOPT0 Register Contents (2/3)
Bit Position
Bit Name
Function
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