Data Rate Matching Buffer
Original Publication Date: 1986-Sep-01
Included in the Prior Art Database: 2005-Mar-09
A system allows simultaneous writing and reading, at different data rates of a device channel adapter buffer when using the data streaming Protocol on the 370 I/O Printer Interface. Fig. 1 is a diagram of the principle components used to control the writing and reading of the device channel adapter buffer during data transfer with the system channel. During data transfer, data from the system channel will be written into the device channel adapter buffer as it is received (demand write cycle) at a higher rate than the data read from it that is to be transferred to the device common buffer (allow read cycle). The logic controls for the device common buffer will grant priority to allow data transfers between the device channel adapter buffer and the device common buffer.