h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 627
h8s-2161b
Manufacturer Part Number
h8s-2161b
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2161B.pdf
(845 pages)
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There are two modes—continuous mode and quiet mode—for serialized interrupts. The mode
initiated in the next transfer cycle is selected by the stop frame of the serialized interrupt transfer
cycle that ended before that cycle.
In continuous mode, the host initiates host interrupt transfer cycles at regular intervals. In quiet
mode, the slave processor with interrupt sources requiring a request can also initiate an interrupt
transfer cycle, in addition to the host. In quiet mode, since the host does not necessarily initiate
interrupt transfer cycles, it is possible to suspend the clock (LCLK) supply and enter the power-
down state. In order for a slave to transfer an interrupt request in this case, a request to restart the
Contents
Start
IRQ0
IRQ1
SMI
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
IOCHCK
Stop
Serial Interrupt Transfer Cycle
Drive
Source
Slave
Host
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Host
Number
of States
6
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
Undefined
Section 19 Host Interface LPC Interface (LPC)
Notes
In quiet mode only, slave drive possible in first
state, then next 3 states 0-driven by host
Drive possible in LPC channel 1
Drive possible in LPC channels 2 and 3
Drive possible in LPC channels 2 and 3
Drive possible in LPC channels 2 and 3
Drive possible in LPC channels 2 and 3
Drive possible in LPC channels 2 and 3
Drive possible in LPC channel 1
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
Rev. 3.00 Mar 21, 2006 page 573 of 788
REJ09B0300-0300
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