Datasheet

Section 18 LPC Interface (LPC)
Rev. 2.00 Sep. 28, 2009 Page 613 of 870
REJ09B0429-0200
The serialized interrupt transfer cycle frame configuration is as follows. Two of the states
comprising each frame are the recover state in which the SERIRQ signal is returned to the 1-level
at the end of the frame, and the turnaround state in which the SERIRQ signal is not driven. The
recover state must be driven by the host or slave that was driving the preceding state.
Table 18.10 Serialized Interrupt Transfer Cycle Frame Configuration
Serial Interrupt Transfer Cycle
Frame
Count
Contents
Drive
Source
Number
of States
Notes
0 Start Slave
Host
6 In quiet mode only, slave drive possible in the
first state, then next 3 states 0-driven by host
1 IRQ0 Slave 3 Drive impossible
2 IRQ1 Slave 3 Drive possible in LPC channel 1 and SCIF
3 SMI Slave 3 Drive possible in LPC channels 2, 3, and SCIF
4 IRQ3 Slave 3 Drive possible in SCIF or by IRQ3E
5 IRQ4 Slave 3 Drive possible in SCIF or by IRQ4E
6 IRQ5 Slave 3 Drive possible in SCIF or by IRQ5E
7 IRQ6 Slave 3 Drive possible in LPC channels 2, 3, and SCIF
8 IRQ7 Slave 3 Drive possible in SCIF or by IRQ7E
9 IRQ8 Slave 3 Drive possible in SCIF or by IRQ8E
10 IRQ9 Slave 3 Drive possible in LPC channels 2, 3, and SCIF
11 IRQ10 Slave 3 Drive possible in LPC channels 2, 3, and SCIF
12 IRQ11 Slave 3 Drive possible in LPC channels 2, 3, and SCIF
13 IRQ12 Slave 3 Drive possible in LPC channel 1 and SCIF
14 IRQ13 Slave 3 Drive possible in SCIF or by IRQ13E
15 IRQ14 Slave 3 Drive possible in SCIF or by IRQ14E
16 IRQ15 Slave 3 Drive possible in SCIF or by IRQ15E
17 IOCHCK Slave 3 Drive impossible
18 Stop Host Undefined First, 1 or more idle states, then 2 or 3 states
0-driven by host
2 states: Quiet mode next
3 states: Continuous mode next