EZ80L92MCU Datasheet, PDF (152/241 Pages) Zilog, Inc. – eZ80Acclaim Flash Microcontrollers

eZ80L92 MCU
Product Specification
137
SPI Receive Buffer Register
The SPI Receive Buffer register (SPI_RBR) is used by the SPI slave to receive data from
the serial bus. The SPIF bit must be cleared prior to a second transfer of data from the shift
register or an overrun condition exists. In cases of overrun the byte that caused the overrun
is lost.
The SPI Receive Buffer Read-Only register shares the same address space as the SPI
Transmit Shift Write-Only register. See Table 74.
Table 74. SPI Receive Buffer Register (SPI_RBR = 00BCh)
Bit
Reset
CPU Access
Note: R = Read Only.
7
6
5
4
3
2
1
0
X
X
X
X
X
X
X
X
R
R
R
R
R
R
R
R
Bit
Position
[7:0]
RX_DATA
Value Description
00h– SPI received data.
FFh
PS013012-1004
PRELIMINARY
Serial Peripheral Interface