401
Chapter 13
Serial Interface Function
Preliminary User’s Manual U15839EE1V0UM00
(6)
Clocked serial interface read-only reception buffer registers Low (SIRBEL0 to SIRBEL2)
The SIRBELn register is an 8-bit buffer register that stores receive data (n = 0 to 2).
These registers are read-only, in 8-bit units.
In addition to reset input, this register can also be initialized by clearing (0) the CSIE bit of the
CSIMn register.
The SIRBELn register is the same as the lower byte of the SIRBn register. It is used to read the
contents of the SIRBLn register.
Figure 13-27:
Clocked Serial Interface Read-Only Reception Buffer Registers Low
(SIRBEL0 to SIRBEL1)
Cautions: 1. The receive operation is not started even if data is read from the SIRBELn
register.
2. The SIRBELn register can be read only if the 8-bit data length has been set (CCL
bit of CSIMn register = 0).
7
6
5
4
3
2
1
0
Address
Initial
value
SIRBEL0 SIRBE7 SIRBE6 SIRBE5 SIRBE4 SIRBE3 SIRBE2 SIRBE1 SIRBE0 FFFF FD06H
00H
SIRBEL1 SIRBE7 SIRBE6 SIRBE5 SIRBE4 SIRBE3 SIRBE2 SIRBE1 SIRBE0 FFFF FD46H
00H
SIRBEL2 SIRBE7 SIRBE6 SIRBE5 SIRBE4 SIRBE3 SIRBE2 SIRBE1 SIRBE0 FFFF FD86H
00H
Bit Position
Bit Name
Function
7 to 0
SIRBE7 to
SIRBE0
Store receive data.
Summary of Contents for mPD703128
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