Toshiba H1 Series Data Book page 337

b. Receiving
In SCLK Output Mode the synchronous clock is output on the SCLK0 pin and the
data is shifted to Receiving Buffer 1. This is initiated when the Receive Interrupt flag
INTES0<IRX0C> is cleared as the received data is read. When 8-bit data is received,
the data is transferred to Receiving Buffer 2 (SC0BUF) following the timing shown
below and INTES0<IRX0C> is set to 1 again, causing an INTRX0 interrupt to be
generated.
Setting SC0MOD0<RXE> to 1 initiates SCLK0 output.
IRX0C
(INTRX0 interrupt
request)
SCLK0 output
(<SCLKS> = 0:
rising edge mode)
SCLK0 output
(<SCLKS> = 1:
falling edge mode)
RXD0
Figure 3.14.15 Receiving operation in I/O Interface Mode (SCLK0 Output Mode)
In SCLK Input Mode the data is shifted to Receiving Buffer 1 when the SCLK input
goes active. The SCLK input goes active when the Receive Interrupt flag INTES0
<IRX0C> is cleared as the received data is read. When 8-bit data is received, the data
is shifted to Receiving Buffer 2 (SC0BUF) following the timing shown below and
INTES0 <IRX0C> is set to 1 again, causing an INTRX0 interrupt to be generated.
SCLK0 input
(<SCLKS> = 0:
rising edge mode)
SCLK0 input
(<SCLKS> = 1:
falling edge mode)
RXD1
IRX0C
(INTRX0 interrupt request)
Figure 3.14.16 Receiving Operation in I/O interface Mode (SCLK0 Input Mode)
Note: The system must be put in the Receive Enable state (SC0MOD0<RXE> = 1) before data can be received.
Bit0 Bit1
Bit
Bit1 Bit5
92CZ26A-334
TMP92CZ26A
Bit6 Bit7
Bit6 Bit7