Datasheet

ManualsBrandsRENESAS ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller LQFP 144 (20x20) 16-Bit 33 MHz I/O number 96

Section 8 EXDMA Controller (EXDMAC)

R01UH0310EJ0500 Rev. 5.00 Page 463 of 1384

Sep 25, 2012

H8S/2426, H8S/2426R, H8S/2424 Group

φ pin

EDREQ

EDRAK

EDACK

Bus cycle

ETEND

Bus release Bus release

Last transfer

in block

1-block-size transfer period

Last block

Last transfer cycle3 cycles

EXDMA single

transfer cycle

EXDMA single

transfer cycle

EXDMA single

transfer cycle

EXDMA single

transfer cycle

EXDMA single

transfer cycle

Repeated Repeated

Bus

release

Figure 8.40 External Request/Cycle Steal Mode/Block Transfer Mode

(No Contention/Single Address Mode/Falling Edge Sensing/BGUP = 0)