WOODWARD 5501-470伺服調(diào)節(jié)器，5501-470用戶手冊
串行通信接口MVME162使用Zilog Z85230串行端口控制器來實現(xiàn)這兩個功能串行通信接口。每個接口支持CT、DCD、RTS、，和DTR控制信號以及TxD和RxD發(fā)送/接收數(shù)據(jù)信號和TxC/RxC同步時鐘信號。Z85230支持同步（SDLC/HDLC）和異步協(xié)議。MVME162硬件支持110B/s至38.4KB/s的異步串行波特率。Z85230在中斷確認(rèn)周期內(nèi)提供中斷向量。
WOODWARD 5501-470伺服調(diào)節(jié)器根據(jù)中斷源在Z85230內(nèi)修改矢量。中斷請求級別通過MCchip編程。參見Z85230第1章中列出的數(shù)據(jù)表和MVME162嵌入式控制器程序員參考指南信息MVME162串行端口1Z85230的端口A連接為EIA-232-D DCE（數(shù)據(jù)電路終端設(shè)備），并路由到標(biāo)記為串行端口的25針DB25連接器1/MVME162前面板上的控制臺。端口A也路由到DB9/RJ11（在MVME712x上）或DB25（在MVME712M上）連接器MVME712系列過渡模塊。在那里標(biāo)識為端口2。雖然兩個端口都連接到同一個Z85230端口A，但有它們之間的幾個區(qū)別：? 在MVME162前面板上，端口1可以連接到TxC和RxCDB25連接器上可能存在的時鐘信號。這些通過MVME162板上的收割臺J11進(jìn)行連接（見圖第2章中的2-3和2-4）。TxC和RxC時鐘在端口不可用MVME712系列轉(zhuǎn)換模塊上。? 在MVME712x轉(zhuǎn)換模塊上，端口2可以通過DB9 DTE串行接口或（如果模塊如此配備1）通過車載調(diào)制解調(diào)器及其標(biāo)準(zhǔn)RJ11（電信）插孔。這些連接是通過MVME712x上的跳線頭J16和J17制成。? 在MVME712M轉(zhuǎn)換模塊上，端口2可以配置為通過上的跳線頭J16和J17連接DCE或DTE串行端口MVME712M。第2章中的圖2-3（第1和2頁）和2-4（第1和2頁）說明了端口A可用的配置。MVME162串行端口2Z85230的端口B通過串行接口模塊配置，該模塊是安裝在MVME162板上的連接器J10處。四個串行接口模塊可用：? SIM05和SIM06（分別為EIA-232-D DTE和DCE）
? SIM07和SIM08（分別為EIA-530 DTE和DCE）
Serial Communications Interface
The MVME162 uses a Zilog Z85230 serial port controller to implement the two
serial communications interfaces. Each interface supports CTS, DCD, RTS,
and DTR control signals as well as the TxD and RxD transmit/receive data
signals, and TxC/RxC synchronous clock signals. The Z85230 supports
synchronous (SDLC/HDLC) and asynchronous protocols. The MVME162
hardware supports asynchronous serial baud rates of 110B/s to 38.4KB/s.The Z85230 supplies an interrupt vector during interrupt acknowledge cycles.
The vector is modified within the Z85230 according to the interrupt source.
Interrupt request levels are programmed via the MCchip. Refer to the Z85230
data sheet listed in Chapter 1 and to the MCchip Programming Model in the
MVME162 Embedded Controller Programmer’s Reference Guide for further
information.
MVME162 Serial Port 1
Port A of the Z85230 is interfaced as EIA-232-D DCE (data circuit-terminating
equipment) and is routed to the 25-pin DB25 connector marked SERIAL PORT
1/CONSOLE on the MVME162 front panel. Port A is also routed to a DB9/RJ11
(on the MVME712x) or DB25 (on the MVME712M) connector on the
MVME712 series transition module. It is identified there as Port 2.
Although both ports are connected to the same Z85230 Port A, there are
several differences between them:
? On the MVME162 front panel, Port 1 can be connected to the TxC and RxC
clock signals which may be present on the DB25 connector. These
connections are made via header J11 on the MVME162 board (see Figures
2-3 and 2-4 in Chapter 2). The TxC and RxC clocks are not available at Port
2 on the MVME712 series transition modules.
? On MVME712x transition modules, Port 2 can be routed either through a
DB9 DTE serial interface or (if the module is so equipped1) through the
onboard modem and its standard RJ11 (Telco) jack. These connections are
made via jumper headers J16 and J17 on the MVME712x.
? On MVME712M transition modules, Port 2 can be configured as either a
DCE or a DTE serial port via jumper headers J16 and J17 on the
MVME712M.
Figures 2-3 (sheets 1 and 2) and 2-4 (sheets 1 and 2) in Chapter 2 illustrate the
configurations available for Port A.
MVME162 Serial Port 2
Port B of the Z85230 is configured via a serial interface module which is
installed at connector J10 on the MVME162 board. Four serial interface
modules are available:
? SIM05 and SIM06 (EIA-232-D DTE and DCE respectively)
? SIM07 and SIM08 (EIA-530 DTE and DCE respectively)
