WOODWARD 5501-470伺服調節器，5501-470用戶(hù)手冊
串行通信接口MVME162使用Zilog Z85230串行端口控制器來(lái)實(shí)現這兩個(gè)功能串行通信接口。每個(gè)接口支持CT、DCD、RTS、，和DTR控制信號以及TxD和RxD發(fā)送/接收數據信號和TxC/RxC同步時(shí)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在中斷確認周期內提供中斷向量。
WOODWARD 5501-470伺服調節器根據中斷源在Z85230內修改矢量。中斷請求級別通過(guò)MCchip編程。參見(jiàn)Z85230第1章中列出的數據表和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(yíng)連接為EIA-232-D DCE（數據電路終端設備），并路由到標記為串行端口的25針DB25連接器1/MVME162前面板上的控制臺。端口A(yíng)也路由到DB9/RJ11（在MVME712x上）或DB25（在MVME712M上）連接器MVME712系列過(guò)渡模塊。在那里標識為端口2。雖然兩個(gè)端口都連接到同一個(gè)Z85230端口A(yíng)，但有它們之間的幾個(gè)區別：? 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(shí)鐘信號。這些通過(guò)MVME162板上的收割臺J11進(jìn)行連接（見(jiàn)圖第2章中的2-3和2-4）。TxC和RxC時(shí)鐘在端口不可用MVME712系列轉換模塊上。? 在MVME712x轉換模塊上，端口2可以通過(guò)DB9 DTE串行接口或（如果模塊如此配備1）通過(guò)車(chē)載調制解調器及其標準RJ11（電信）插孔。這些連接是通過(guò)MVME712x上的跳線(xiàn)頭J16和J17制成。? 在MVME712M轉換模塊上，端口2可以配置為通過(guò)上的跳線(xiàn)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(yè)）和2-4（第1和2頁(yè)）說(shuō)明了端口A(yíng)可用的配置。MVME162串行端口2Z85230的端口B通過(guò)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(gè)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)
