Intel iUP-200A User Manual page 74

Host Serial Command Protocol
Code
20
21
22
23 -FF
The amount of information the universal programmer sends back to the host
depends on the command. The following host commands need only the status
byte and check-sum:
CLEAR (C)
DOWNLOAD (D)
FINISH (F)
LOCK (L) with error condition requiring no additional data
PROGRAM (P) without error condition
SELECT PROM TYPE (S)
UNPROGRAMMED PROM TEST (B)
The following commands need additional information:
LOCK (L)
PROGRAM (P) with error condition
READ (R)
UPLOAD (U)
VERIFY PROM TYPE (V)
Figure B-2 shows all universal programmer acknowledge formats.
The ADDRESS RANGE bytes shown in Figure B-2 indicate (with a 24-bit
number) the total available address space for a selected PROM type.
The DATA INFO byte in the V command acknowledge is defined as follows:
BIT 0 - BIT 5 These bits indicate the word length of the selected PROM type
BIT 6
BIT 7
B-6
Table B-4 S tatu s Byte Codes (continued)
REPEAT OPERATION. The 20H status byte requests that the host soft­
ware transmit the full data buffer again. You can use this feature to pro­
gram certain PROMs.
MESSAGE FOLLOWS. The 21H status byte indicates that a message fol­
lows which can be displayed on the host terminal by the host software.
Following this message, another status message will be sent in response
to the command.
RESET DEAD-MAN TIMER. The 22H status byte indicates that the host
system timer should be reset to prevent the host system from timing out.
Not used.
(e.g., 01000 = 8 bits long).
This bit indicates whether the selected PROM type is pro­
grammed high or low. A zero in this bit position indicates that
the PROM type can be programmed only with lows (zeros). A
one in this bit position indicates that only highs (ones) can be
programmed into the PROM type.
Not used.
Description
iUP-200A/201A