Datasheet

Section 12 Event Link Controller
Page 390 of 982 REJ09B0465-0300 Rev. 3.00
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
Table 12.4 Operations of Modules when Event is Input
Module Operations when Event is Input
Timer RA
Timer RB
Timer RC
Timer RD
Timer RG
Each timer operates differently depending on the setting of the relevant
event link option setting register as below.
• Starts counting when an event signal is input.
• Counts the input events.
• Performs input-capture operation when an event is input. (except timer
RA and timer RB)
A/D converter Starts A/D conversion when an event signal is input.
D/A converter Starts D/A conversion when an event signal is input.
Port-groups The port-group operates
differently depending on the
settings as below.
• Changes the PDR value
to the specified value.
• Transfers the PDBF
values to the PDR.
• Shifts out the bit value.
Output ports The value of PDR (port
data register) changes
when an event signal is
input. (The value of the
signal to be output from
the relevant external pin
changes.)
Single-ports Changes the PDR value to
the specified value.
Port-groups When the signal value of
the input pin changes.
Single-ports
Generates an event.
Port-groups Transfers the signal value
of the external pin to PDBF.
Input ports
When an event is input
Single-ports Event connection is
impossible.
Clock oscillator Switches the clock source to the low-speed on-chip oscillator operation.
Interrupt controller Issues an interrupt request to the CPU, and the DTC starts to transfer data.