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System and Peripheral Control Registers

2.5.2.9 EFUSE Controller Control Register (EFC_CTLREG)

This register is shown in Figure 2-67 and described in Table 2-80.

Figure 2-67. EFUSE Controller Control Register (EFC_CTLREG) (offset = ECh)

31 16

Reserved

R-0

15 4 3 0

Reserved EFC_INSTR_WEN

R-0 R/WP-5h

LEGEND: R/W = Read/Write; R = Read only; WP = Write in privileged mode only; -n = value after reset

Table 2-80. EFUSE Controller Control Register (EFC_CTLREG) Field Descriptions

Bit Field Value Description

31-4 Reserved 0 Read returns 0. Writes have no effect.

3-0 EFC_INSTR_WEN Enable user write of 4 EFUSE controller instructions.

SYS module generates the enable signal which will be tied to

OCP_FROM_WRITE_DISABLE on efuse controller port

Ah Writing of instructions (Program, ProgramCRA, RunAutoload, and LoadFuseScanchain) to

EFC is allowed enabled.

Others Writing of instructions (Program, ProgramCRA, RunAutoload, and LoadFuseScanchain) in

EFC registers is blocked.

2.5.2.10 Die Identification Register Lower Word (DIEIDL_REG0)

This register is shown in Figure 2-68 and described in Table 2-81.

Figure 2-68. Die Identification Register, Lower Word (DIEIDL_REG0) [offset = F0h]

31 0

DIEIDL

R-X

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset; -X = Value unchanged after reset

Table 2-81. Die Identification Register, Lower Word (DIEIDL_REG0) Field Descriptions

Bit Field Description

31-0 DIEIDL(31-0) This read-only register contains the lower word (31:0) of the die ID information.

201

SPNU562–May 2014 Architecture

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