Figure D-7 Host Control And Host Status Registers - Motorola DSP56309 User Manual

Application:
HOST

Figure D-7 Host Control and Host Status Registers

MOTOROLA
Host Receive Interrupt Enable
0 = Disable 1 = Enable if HRDF = 1
Host Transmit Interrupt Enable
0 = Disable 1 = Enable if HTDE = 1
Host Command Interrupt Enable
0 = Disable 1 = Enable if HCP = 1
Host Flag 2
Host Flag 3
Host Control Register (HCR)
X:$FFFFC2 Read /Write
DSP Side
Host Receive Data Full
0 = ¸ Wait 1 = ¸ Read
Host Transmit Data Empty
0 = ¸ Wait 1 = ¸ Write
Host Command Pending
0 = ¸ Wait 1 = ¸ Ready
Host Flags
Read Only
Host Staus Register (HSR)
X:$FFFFC3 Read Only
DSP56309UM/D
15 7 6
* * *
0 0 0
Reset = $0
15 7 6
* * *
0 0 0
Reset = $2
*
= Reserved, Program as 0
Programming Reference
Date:
Programmer:
Sheet 2 of 6
5 4 3 2 1 0
*
HF3 HF2 HCIE HTIE HRIE
0
5 4 3 2 1 0
*
HF1 HF0 HCP HTDE HRDF
0
D-21