Zilog Z16C30 - Manual (Page 11)

Z16C30 USC ®
U SER ' S M ANUAL
vii
Z ILOG
UM97USC0100
F
IGURE
T
ITLES
P
AGE
Chapter 5
Figure 5-1. Asynchronous Data ................................................................................ 5-2
Figure 5-2. Character Oriented Synchronous Data .................................................. 5-2
Figure 5-3. HDLC/SDLC Data ................................................................................... 5-4
Figure 5-4. The Channel Mode Register (CMR) ....................................................... 5-6
Figure 5-5. The Transmit Mode Register (TMR) ........................................................ 5-6
Figure 5-6. The Receive Mode Register (RMR) ........................................................ 5-6
Figure 5-7. Carrier Detection for a Received Ethernet Frame ................................ 5-16
Figure 5-8. The Channel Command/Status Register (CCSR) ................................. 5-21
Figure 5-9. A Model of the Receive Datapath ......................................................... 5-24
Figure 5-10. How a USC Channel Provides the "Queued" Status Bits in the RCSR. 5-27
Figure 5-11. The Transmit Command/Status Register (TCSR) ................................. 5-28
Figure 5-12. The Receive Command/Status Register (RCSR) .................................. 5-29
Figure 5-13. A Model of the Transmit Character Counter Feature ............................ 5-33
Figure 5-14. A Model of the Receive Character Counter Feature ............................ 5-34
Figure 5-15. The Channel Command/Status Register (CCSR) ................................. 5-37
Figure 5-16. The Channel Control Register (CCR) ................................................... 5-37
Figure 5-17. A 32-Bit Transmit Control Block in a DMA Buffer ................................. 5-37
Figure 5-18. A 32-Bit Receive Status Block in a DMA Buffer .................................... 5-38
Figure 5-19. The Channel Command/Address Register (CCAR) ............................. 5-41
Chapter 6
Figure 6-1. Flowthrough DMA Transfer Memory to Peripheral Device ..................... 6-2
Figure 6-2. Flowthrough DMA Transfer, Peripheral Device to Memory .................... 6-3
Figure 6-3. Flyby DMA Transfer, Memory to Peripheral Device ............................... 6-4
Figure 6-4. *Flyby DMA Transfer, Peripheral Device to Memory .............................. 6-5
UM009402-0201