Method For Setting A Specified Address When Using The Rtd - Renesas M32R/ECU Series User Manual

14
RTDCLK
RTDRXD
RTDTXD
RTDACK
Indeterminate value during runaway condition
Note: • The next command following the RCV command must have all of its bits 20-31 set to 1.
Figure 14.3.11 Operation of the RCV Command

14.3.7 Method for Setting a Specified Address when Using the RTD

In the Real-Time Debugger (RTD), the low-order 16-bit addresses of the internal RAM can be specified. Be-
cause the internal RAM is located in a 48-KB area ranging from H'0080 4000 to H'0080 FFFF, the low-order 16-
bit addresses of that area (H'4000 to H'FFFF) can be set. However, it is inhibited to access any location other
than the area in which the RAM is located. Note also that two least significant address bits, A31 and A30, area
always 0 because data are read and written to and from the internal RAM in a fixed length of 32 bits.
• • •
X
Figure 14.3.12 Setting Addresses in the Real-Time Debugger
32 clock 32 clock
periods periods
RCV RCV
Indeterminate data during runaway condition
RCV command stored
X A29 – A16
Only H'0080 4000 to H'0080 FFFF
can be specified
REAL TIME DEBUGGER (RTD)
14.3 Functional Description of the RTD
32 clock
periods
Bits 20-31
1 1 RDR(A1)
• • •
Next command following RCV command
2 clock periods
Memory map
H'0080 0000
SFR 16KB
H'0080 4000
RAM area
H'0080 FFFF
14-9
32 clock
periods
D(A1)
2 clock periods
32180 Group User's Manual (Rev.1.0)