Specifications

Capture Units
6-75 Event Manager (EV)
Figure 6–32. Capture FIFO Status Register B (CAPFIFOB) — Address 7522h
15–14 13–12 11–10 9–8
Reserved CAP6FIFO CAP5FIFO CAP4FIFO
R-0 RW-0 RW-0 RW-0
7–0
Reserved
R-0
Note: R = Read access, W = Write access, -0 = value after reset
Bits 15–14 Reserved. Reads return zero; writes have no effect.
Bits 13–12 CAP6FIFO. CAP6FIFO Status.
00 Empty
01 Has one entry
10 Has two entries
11 Had two entries and captured another one; first entry has been
lost.
Bits 11–10 CAP5FIFO. CAP5FIFO Status
00 Empty
01 Has one entry
10 Has two entries
11 Had two entries and captured another one; first entry has been
lost.
Bits 9–8 CAP4FIFO. CAP4FIFO Status.
00 Empty
01 Has one entry
10 Has two entries
11 Had two entries and captured another one; first entry has been
lost.
Bits 7–0 Reserved. Reads return zero; writes have no effect.
6.8.4 Capture Unit FIFO Stacks
Each capture unit has a dedicated 2-level-deep FIFO stack. The top stack con-
sists of CAP1FIFO, CAP2FIFO, and CAP3FIFO (in case of EVA) or
CAP4FIFO, CAP5FIFO, and CAP6FIFO (in case of EVB). The bottom stack
consists of CAP1FBOT, CAP2FBOT, and CAP3FBOT (in case of EVA) or