Hitachi EH-150 Applications Manual page 77

Time chart for connection 2 is shown as Figure 7.14.
Register name
EXRR. ARP2 = 1
RDCR .ARE2
C2CSR .RXC2
: By user,
Figure 7.14
(1) When receive mode is optional mode, set 1 to "receive mode change " bit ( EXRR .ARP2).
------------------------------------------------------------------------------------------------------------------- Select receive mode
(2) When data should be refreshed, set 1 to "Ready to transmit" bit ( RDCR .ARE2).
--------------------------------------------------------------------------------------------------------------- Request to refresh data
(3) EH-ETH2 receives the request and sends designated data to CPU. After the sending completed, EH-ETH2 sets 1
to "Receiving completed" bit ( C2CSR .RXC2).
------------------------------------------------------------------------------------------------------------------ Receiving completed
(4) Confirm sending completed by C2CSR .RXC2=1, and cancel the "Ready to receive" bit ( RDCR .ASE2). If data
should be refreshed continuously, the cancellation is not necessary.
------------------------------------------------------------------------------------------------ Cancellation of a request to refresh
(5) EH-ETH2 receives the request to cancel, and clear the "Receiving completion" bit ( C2CSR .RXC2).
------------------------------------------------------------------------------------------------------ Clear receiving completion bit
- Receive mode is Normal receiving mode
When EH-ETH2 receive data from other station, it set to the receive area (CPU internal output) specified by
ASR Receive information. This series of action can be called "automatic receive". See "7.1.2 Automatic data
receiving" for detailed.
Chapter 7 Automatic Sending/Receiving function (ASR)
Optional receiving mode
(2)
(3)
: By EH-ETH2
Procedure of Optional receiving
7-19
(1)
(5)
(4)