dsp56800eerm Freescale Semiconductor, Inc, dsp56800eerm Datasheet - Page 112

• Manufacturer Part Number: dsp56800eerm
• Description: 16-bit Digital Signal Controllers
• Manufacturer: Freescale Semiconductor, Inc

6.5.3.1
This register is reset only by the Power-On Reset (POR). It has no part-specific functionality and is
intended for use by a software developer to contain data that will be unaffected by the other reset sources
(RESET pin, software reset, and COP reset).
6.5.4
This read-only register displays the most significant half of the JTAG ID for the chip. This register reads
$01F4.
6.5.5
This read-only register displays the least significant half of the JTAG ID for the chip. This register reads
$601D.
6.5.6
Most of the pins on the chip have on-chip pull-up resistors. Pins which can operate as GPIO can have these
resistors disabled via the GPIO function. Non-GPIO pins can have their pull-ups disabled by setting the
appropriate bit in this register. Disabling pull-ups is done on a peripheral-by-peripheral basis (for pins not
muxed with GPIO). Each bit in the register (see
Table 2-2
112
Base + $8
RESET
Write
Read
Base + $6
Base + $7
RESET
RESET
Read
Write
Read
Write
to identify which pins can deactivate the internal pull-up resistor.
Most Significant Half of JTAG ID (SIM_MSH_ID)
Least Significant Half of JTAG ID (SIM_LSH_ID)
SIM Pull-up Disable Register (SIM_PUDR)
Software Control Data 1 (FIELD)—Bits 15–0
15
0
0
15
15
PWMA1
Figure 6-6 Most Significant Half of JTAG ID (SIM_MSH_ID)
Figure 6-7 Least Significant Half of JTAG ID (SIM_LSH_ID)
0
0
0
0
14
0
Figure 6-8 SIM Pull-up Disable Register (SIM_PUDR)
14
14
0
0
1
1
CAN
13
0
13
13
0
0
1
1
MODE
EMI_
12
0
12
12
0
0
0
0
RESET
11
0
56F8357 Technical Data, Rev. 15
11
11
0
0
0
0
IRQ
10
0
10
10
0
0
0
0
XBOOT PWMB PWMA0
Figure
9
0
9
0
0
9
0
0
6-8) corresponds to a functional group of pins. See
8
0
8
8
1
1
0
0
7
0
7
7
1
1
0
0
6
6
1
1
0
0
6
0
0
CTRL
5
1
1
5
0
0
5
0
4
1
1
4
1
1
4
0
0
JTAG
3
3
3
0
0
0
1
1
Freescale Semiconductor
2
1
1
2
1
1
2
0
0
1
0
0
1
0
0
1
0
0
Preliminary
0
0
0
0
1
1
0
0
0