Transfer Mode Setup Request From Idd To Init - Fujitsu MAN3184 SERIES Specifications

Table 2.6
Message from IDD
SDTR
REQ/ACK Offset = X'7F'
Transfer Period = X'0A'
(25 ns)
(LVD mode)
Transfer
Period =
X'0C' (50 ns)
(SE mode)
*1 If the INIT responds to these values during transfer period with non-zero and REQ/ACK offset, the
IDD sends the MESSAGE REJECT message following the INIT's SYNCHRONOUS TRANSFER
REQUEST message and forcibly switches the synchronous transfer mode to the asynchronous
transfer mode.

Transfer mode setup request from IDD to INIT

(SDTR: SYNCHRONOUS DATA TRANSFER REQUEST message)
Response from INIT
MESSAGE REJECT
REQ/ACK X'00'
Offset X'01'
:
X'7F'
X'80'
:
Transfer Period X'00'
:
X'09'
X'0A' (25 ns)
X'0B' (50.0 ns) Synchronous mode
X'0C' (50 ns)
S
X'0D'
:
D
X'12' (72 ns)
T
X'13' (76 ns)
:
R
X'19'(100 ns)
X'1A' (104 ns)
:
X'1F' (124 ns)
X'20' (128 ns)
:
X'25' (148 ns)
X'26' (152 ns)
:
X'2B' (172 ns)
X'2C' (176 ns)
:
X'32' (200 ns)
X'33' (204 ns)
:
X'FF' (1020 ns)
C141-E123-01EN
Transfer mode to be defined
Asynchronous mode
Asynchronous mode
Synchronous mode
REQ/ACK offset < Specified value by INIT
REQ/ACK offset= X'7F'
Synchronous mode (40.0 MB/s max.) 8-bit mode
(80.0 MB/s max.) 16-bit mode
REQ Period > 25 ns
ACK Period > 25 ns
Synchronous mode (40.0 MB/s max.) 8-bit mode
(80.0 MB/s max.) 16-bit mode
REQ Period > 25 ns
ACK Period > Specified value by Init
(20.0 MB/s max.) 8-bit mode
(40.0 MB/s max.) 16-bit mode
REQ Period > 50.0 ns
ACK Period > Specified value by Init
Synchronous mode (20.0 MB/s max.) 8-bit mode
(40.0 MB/s max.) 16-bit mode
REQ Period > 50 ns
ACK Period > Specified value by INIT
Synchronous mode (13.3 MB/s max.) 8-bit mode
(26.6 MB/s max.) 16-bit mode
REQ Period > 75 ns
ACK Period > Specified value by INIT
Synchronous mode (10.0 MB/s max.) 8-bit mode
(20.0 MB/s max.) 16-bit mode
REQ Period > 100 ns
ACK Period > Specified value by INIT
Synchronous mode (8.00 MB/s max.) 8-bit mode
(16.0 MB/s max.) 16-bit mode
REQ Period > 125 ns
ACK Period > Specified value by INIT
Synchronous mode (6.67 MB/s max.) 8-bit mode
(13.33 MB/s max.) 16-bit mode
REQ Period > 150 ns
ACK Period > Specified value by INIT
Synchronous mode (5.71 MB/s max.) 8-bit mode
(11.42 MB/s max.) 16-bit mode
REQ Period > 175 ns
ACK Period > Specified value by INIT
Synchronous mode (5.00 MB/s max.) 8-bit mode
(10.00 MB/s max.) 16-bit mode
REQ Period > 200 ns
ACK Period > Specified value by INIT
Asynchronous mode (*1)
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