H8SXSLASH1663R datasheet(870/1504 Pages) RENESAS

870 / 1504 page

Section 16 8-Bit Timers (TMR)

Rev. 2.00 Sep. 24, 2008 Page 838 of 1468

REJ09B0412-0200

• Interrupt in unit 2 and unit 3

There are two interrupt sources for the 8-bit timer (TMR_4 or TMR_5): CMIA, CMIB. The

interrupt signal is CMI only. The interrupt sources are shown in table 16.7. When enabling or

disabling is set by the interrupt enable bit in TCR or TCSR, and when either CMIA or CMIB

interrupt source is generated, CMI is sent to the interrupt controller. To verify which interrupt

source is generated, confirm by checking each flag in TCSR. No overflow-related interrupt signal

exists. DTC cannot be activated by this interrupt.

Table 16.7

8-Bit Timer (TMR_4 or TMR_5) Interrupt Sources (in Unit 2 and Unit 3)

Signal

Name

Interrupt Source

Interrupt

Flag

DTC

Activation

Priority

CMIA4

TCORA_4 compare match

CMFA

CMI4

CMIB4

TCORB_4 compare match

CMFB

Not possible



CMIA5

TCORA_5 compare match

CMFA

CMI5

CMIB5

TCORB_5 compare match

CMFB

Not possible



16.7.2

A/D Converter Activation

The A/D converter can be activated by a compare match A for the even channels of each TMR

unit. *

If the ADTE bit in TCSR is set to 1 when the CMFA flag in TCSR is set to 1 by the occurrence of

a compare match A, a request to start A/D conversion is sent to the A/D converter. If the 8-bit

timer conversion start trigger has been selected on the A/D converter side at this time, A/D

conversion is started.

Note: * For the corresponding A/D converter channels, see section 22, A/D Converter.

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