Fluke 9100 Series Service Manual page 14

2/Theory of Operation
o vector drive status register.
o six-pin jack for control signals for vector driving.
The Top PCA is used primarily for vector output, although it also
provides the 40-channel input signals, Clip Module Connector Code, and
ready button signals to the input section on the Main PCA. It also
generates the Capture Clock (available as an input sync mode).
The input section of the Vector Output I/O Module consists of the
following six functional blocks (See Figure 2-1):
o Mainframe to Bus Interface Functional Block.
o Custom Chip Functional Block.
o Clock and Enable Mux Functional Block.
o General Control Latch Functional Block.
o Connector Code Functional Block.
o Input Protection Functional Block.
The output section consists of the following twelve functional blocks
(See Figure 2-2):
o Main PCA to Top PCA Interface Functional Block.
o Internal Oscillator Control Functional Block.
o Output Control Functional Block.
o RAM Select Functional Block.
o SSLOGIC (Start/Stop Logic) Functional Block.
o Vector Address Functional Block.
o Vector Pattern RAM Functional Block.
o Vector Control RAM Functional Block.
o Loop Control Functional Block.
o Capture Clock Functional Block.
o Drive Status Functional Block.
o Output Protection Functional Block.
2-2