TMP92CF30
2009-06-12
92CF30-454
(b)
MSB1ST
This bit specifies whether to transmit/receive byte with the MSB first or with the
LSB first. Data transmission or reception must not be performed while changing the
state of this bit.
(c)
DOSTAT
This bit specifies the status of the SPDO pin of when data transmission is not
performed (i.e., after completing data transmission or during data reception). Data
transmission or reception must not be performed while changing the state of this bit.
(d)
TCPOL
This bit specifies the polarity of the active edge of the synchronization clock for data
transmission.
The XEN bit should be cleared to “0” for changing the state of this bit. At the same
time, RCPOL should also be cleared to “0”.
Figure 3.17.4 Timing Diagram of Data Transmissions Controlled by the TCPOL Bit
(e)
RCPOL
This bit specifies the polarity of the active edge of the synchronization clock for data
reception.
The SPIMD<XEN> bit should be cleared to “0” for changing the state of this bit.
TCPOL should also be cleared to “0”.
Figure 3.17.5 Timing Diagram of Data Receptions Controlled by the TCPOL Bit
(f)
TDINV
This bit specifies whether to logically invert the data transmitted from the SPDO pin
or not. Data transmission or reception must not be performed while changing the state
of this bit.
(g)
RDINV
This bit specifies whether to logically invert the data received from the SPDI pin or
not. Data transmission or reception must not be performed while changing the state of
this bit.
SPDO pin
Bit 0
Bit 1
Bit 2
Bit 3 Bit 4
Bit 7
MSB
SPCLK pin (TCPOL
=
“1”)
LSB
SPCLK pin (TCPOL
=
“0”)
LSB
SPCLK pin (RCPOL = “0”)
SPDI pin
Bit 0
Bit 1
Bit 2
Bit 3 Bit 4
Bit 7
MSB
SPCLK pin (RCPOL = “1”)
Содержание TLCS-900/H1 Series
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