upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 544
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upd70f3422gj-gae-qs-ax
Manufacturer Part Number
upd70f3422gj-gae-qs-ax
Description
32-bit Single-chip Microcontroller
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD70F3422GJ-GAE-QS-AX.pdf
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Chapter 17
544
Bit position
7
6
5
Initial Value
Table 17-3
Address
Access
Bit name
CBnPWR
CBnRXE
CBnTXE
(1)
CBnCTL0 - CSIBn control register 0
CBnCTL0 is a register that controls the CSIBn serial transfer operation.
This register can be read/written in 8-bit or 1-bit units.
<base>
01
a)
CBnCTL0 register contents (1/2)
Preliminary User’s Manual U17566EE1V2UM00
CBnPWR CBnTXE
H
R/W
. This register is cleared by any reset.
7
These bits can only be rewritten when the CBnPWR bit = 0. However, CBnPWR
bit = 1 can also be set at the same time as rewriting these bits.
Function
CSIBn operation disable/enable:
The CBnPWR bit controls the CSIBn operation and resets the internal circuit.
Transmit operation disable/enable:
The SOBn output is low level when the CBnTXE bit is 0.
Receive operation disable/enable:
When the CBnRXE bit is cleared to 0, no reception complete interrupt is output
even when the prescribed data is transferred in order to disable the receive
operation, and the receive data (CBnRX register) is not updated.
0: Disable CSIBn operation and reset the CSIBn registers
1: Enable CSIBn operation
0: Disable transmit operation
1: Enable transmit operation
0: Disable receive operation
1: Enable receive operation
R/W
6
a
CBnRXE
R/W
5
a
CBnDIR
R/W
4
a
R/W
3
0
Clocked Serial Interface (CSIB)
R/W
2
0
CBnTMS
R/W
1
a
CBnSCE
R/W
0
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